Ultralow Noise, High Accuracy Voltage References ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 FEATURES PIN CONFIGURATION ADR4520/ADR4525/ ADR4530/ADR4533/ ADR4540/ADR4550 Maximum temperature coefficient (TCVOUT): 2 ppm/C Output noise (0.1 Hz to 10 Hz) Less than 1 V p-p at VOUT of 2.048 V typical Initial output voltage error: 0.02% (maximum) Input voltage range: 3 V to 15 V Operating temperature: -40C to +125C Output current: +10 mA source/-10 mA sink Low quiescent current: 950 A (maximum) Low dropout voltage: 300 mV at 2 mA (VOUT 3 V) 8-lead SOIC package NC 1 8 TP VIN 2 7 NC 6 VOUT TOP VIEW GND 4 (Not to Scale) 5 NC NC 3 NOTES 1. NC = NO CONNECT. 2. TP = TEST PIN. DO NOT CONNECT. 10203-001 Data Sheet Figure 1. 8-Lead SOIC APPLICATIONS Precision data acquisition systems High resolution data converters High precision measurement devices Industrial instrumentation Medical devices Automotive battery monitoring GENERAL DESCRIPTION The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 devices are high precision, low power, low noise voltage references featuring 0.02% maximum initial error, excellent temperature stability, and low output noise. This family of voltage references uses an innovative core topology to achieve high accuracy while offering industry-leading temperature stability and noise performance. The low, thermally induced output voltage hysteresis and low long-term output voltage drift of the devices also improve system accuracy over time and temperature variations. A maximum operating current of 950 A and a maximum low dropout voltage of 300 mV allow the devices to function very well in portable equipment. The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 series of references is provided in an 8-lead SOIC package and is available in a wide range of output voltages, all of which are specified over the extended industrial temperature range of -40C to +125C. Table 1. Selection Guide Model ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 Output Voltage (V) 2.048 2.5 3.0 3.3 4.096 5.0 Table 2. Voltage Reference Choices from Analog Devices VOUT (V) 2.048 2.5 5.0 Low Cost/ Low Power ADR360 ADR3420 ADR3425 AD1582 ADR361 ADR3450 AD1585 ADR365 ADR291 REF192 Ultralow Noise ADR430 ADR440 ADR431 ADR441 ADR03 AD780 ADR293 REF195 ADR435 ADR445 ADR02 AD586 Micropower REF191 High Voltage, High Performance Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 (c)2012 Analog Devices, Inc. All rights reserved. ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 ADR4520 ..................................................................................... 11 Applications ....................................................................................... 1 ADR4525 ..................................................................................... 14 Pin Configuration ............................................................................. 1 ADR4530 ..................................................................................... 17 General Description ......................................................................... 1 ADR4533 ..................................................................................... 20 Revision History ............................................................................... 2 ADR4540 ..................................................................................... 23 Specifications..................................................................................... 3 ADR4550 ..................................................................................... 26 ADR4520 Electrical Characteristics........................................... 3 Terminology .................................................................................... 29 ADR4525 Electrical Characteristics........................................... 4 Theory of Operation ...................................................................... 30 ADR4530 Electrical Characteristics........................................... 5 Long-Term Drift ......................................................................... 30 ADR4533 Electrical Characteristics........................................... 6 Power Dissipation....................................................................... 30 ADR4540 Electrical Characteristics........................................... 7 Applications Information .............................................................. 31 ADR4550 Electrical Characteristics........................................... 8 Basic Voltage Reference Connection ....................................... 31 Absolute Maximum Ratings ............................................................ 9 Input and Output Capacitors .................................................... 31 Thermal Resistance ...................................................................... 9 Location of Reference in System .............................................. 31 ESD Caution .................................................................................. 9 Sample Applications ................................................................... 31 Pin Configuration and Function Descriptions ........................... 10 Outline Dimensions ....................................................................... 32 Typical Performance Characteristics ........................................... 11 Ordering Guide ............................................................................... 32 REVISION HISTORY 4/12--Revision 0: Initial Version Rev. 0 | Page 2 of 32 Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 SPECIFICATIONS ADR4520 ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN = 3 V to 15 V, IL = 0 mA, TA = 25C. Table 3. Parameter OUTPUT VOLTAGE INITIAL OUTPUT VOLTAGE ERROR Symbol VOUT VOUT_ERR Test Conditions/Comments Min Typ 2.048 B grade 0.02 410 0.04 820 A grade SOLDER HEAT SHIFT TEMPERATURE COEFFICIENT TCVOUT LINE REGULATION LOAD REGULATION VOUT/VIN VOUT/IL QUIESCENT CURRENT DROPOUT VOLTAGE IQ VDO RIPPLE REJECTION RATIO OUTPUT CURRENT CAPACITY Sinking Sourcing OUTPUT VOLTAGE NOISE OUTPUT VOLTAGE NOISE DENSITY OUTPUT VOLTAGE HYSTERESIS RRR IL LONG-TERM DRIFT TURN-ON SETTLING TIME LOAD CAPACITANCE VOUT_LTD tR Max 0.02 B grade, -40C TA +125C A grade, -40C TA +125C -40C TA +125C IL = 0 mA to +10 mA source, -40C TA +125C IL = 0 mA to -10 mA sink, -40C TA +125C -40C TA +125C, no load -40C TA +125C, no load -40C TA +125C, IL = 2 mA fIN = 1 kHz 1 30 100 700 2 4 10 80 120 950 1 1 90 -8 10 eNp-p eN VOUT_HYS 0.1 Hz to 10.0 Hz 1 kHz TA = temperature cycled from +25C to -40C to +125C and back to +25C 1000 hours at 60C IL = 0 mA, CL = 1 F, CIN = 0.1 F, RL = 1 k 1.0 35.8 50 25 90 1 Rev. 0 | Page 3 of 32 100 Unit V % V % V % ppm/C ppm/C ppm/V ppm/mA ppm/mA A V V dB mA mA V p-p nV/Hz ppm ppm s F ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet ADR4525 ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN = 3 V to 15 V, IL = 0 mA, TA = 25C. Table 4. Parameter OUTPUT VOLTAGE INITIAL OUTPUT VOLTAGE ERROR Symbol VOUT VOUT_ERR Test Conditions/Comments Min Typ 2.500 B grade 0.02 500 0.04 1 A grade SOLDER HEAT SHIFT TEMPERATURE COEFFICIENT TCVOUT LINE REGULATION LOAD REGULATION VOUT/VIN VOUT/IL QUIESCENT CURRENT DROPOUT VOLTAGE IQ VDO RIPPLE REJECTION RATIO OUTPUT CURRENT CAPACITY Sinking Sourcing OUTPUT VOLTAGE NOISE OUTPUT VOLTAGE NOISE DENSITY OUTPUT VOLTAGE HYSTERESIS RRR IL LONG-TERM DRIFT TURN-ON SETTLING TIME LOAD CAPACITANCE VOUT_LTD tR Max 0.02 B grade, -40C TA +125C A grade, -40C TA +125C -40C TA +125C IL = 0 mA to +10 mA source, -40C TA +125C IL = 0 mA to -10 mA sink, -40C TA +125C -40C TA +125C, no load -40C TA +125C, no load -40C TA +125C, IL = 2 mA fIN = 1 kHz 1 30 60 700 2 4 10 80 120 950 500 500 90 -10 10 eNp-p eN VOUT_HYS 0.1 Hz to 10.0 Hz 1 kHz TA = temperature cycled from +25C to -40C to +125C and back to +25C 1000 hours at 60C IL = 0 mA, CL = 1 F, CIN = 0.1 F, RL = 1 k 1.25 41.3 50 25 125 1 Rev. 0 | Page 4 of 32 100 Unit V % V % mV % ppm/C ppm/C ppm/V ppm/mA ppm/mA A mV mV dB mA mA V p-p nV/Hz ppm ppm s F Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 ADR4530 ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN = 3.1 V to 15 V, IL = 0 mA, TA = 25C. Table 5. Parameter OUTPUT VOLTAGE INITIAL OUTPUT VOLTAGE ERROR Symbol VOUT VOUT_ERR Test Conditions/Comments Min Typ 3.000 B grade 0.02 600 0.04 1.2 A grade SOLDER HEAT SHIFT TEMPERATURE COEFFICIENT TCVOUT LINE REGULATION LOAD REGULATION VOUT/VIN VOUT/IL QUIESCENT CURRENT DROPOUT VOLTAGE IQ VDO RIPPLE REJECTION RATIO OUTPUT CURRENT CAPACITY Sinking Sourcing OUTPUT VOLTAGE NOISE OUTPUT VOLTAGE NOISE DENSITY OUTPUT VOLTAGE HYSTERESIS RRR IL LONG-TERM DRIFT TURN-ON SETTLING TIME LOAD CAPACITANCE VOUT_LTD tR Max 0.02 B grade, -40C TA +125C A grade, -40C TA +125C -40C TA +125C IL = 0 mA to +10 mA source, -40C TA +125C IL = 0 mA to -10 mA sink, -40C TA +125C -40C TA +125C, no load -40C TA +125C, no load -40C TA +125C, IL = 2 mA fIN = 1 kHz 1 30 60 700 2 4 10 80 120 950 100 300 90 -10 10 eNp-p eN VOUT_HYS 0.1 Hz to 10.0 Hz 1 kHz TA = temperature cycled from +25C to -40C to +125C and back to +25C 1000 hours at 60C IL = 0 mA, CL = 0.1 F, CIN = 0.1 F, RL = 1 k 1.6 60 50 25 130 0.1 Rev. 0 | Page 5 of 32 100 Unit V % V % mV % ppm/C ppm/C ppm/V ppm/mA ppm/mA A mV mV dB mA mA V p-p nV/Hz ppm ppm s F ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet ADR4533 ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN = 3.4 V to 15 V, IL = 0 mA, TA = 25C. Table 6. Parameter OUTPUT VOLTAGE INITIAL OUTPUT VOLTAGE ERROR Symbol VOUT VOUT_ERR Test Conditions/Comments Min Typ 3.300 B grade 0.02 660 0.04 1.32 A grade SOLDER HEAT SHIFT TEMPERATURE COEFFICIENT TCVOUT LINE REGULATION LOAD REGULATION VOUT/VIN VOUT/IL QUIESCENT CURRENT DROPOUT VOLTAGE IQ VDO RIPPLE REJECTION RATIO OUTPUT CURRENT CAPACITY Sinking Sourcing OUTPUT VOLTAGE NOISE OUTPUT VOLTAGE NOISE DENSITY OUTPUT VOLTAGE HYSTERESIS RRR IL LONG-TERM DRIFT TURN-ON SETTLING TIME LOAD CAPACITANCE VOUT_LTD tR Max 0.02 B grade, -40C TA +125C A grade, -40C TA +125C -40C TA +125C IL = 0 mA to +10 mA source, -40C TA +125C IL = 0 mA to -10 mA sink, -40C TA +125C -40C TA +125C, no load -40C TA +125C, no load -40C TA +125C, IL = 2 mA fIN =1 kHz 1 30 60 700 2 4 10 80 120 950 100 300 90 -10 10 eNp-p eN VOUT_HYS 0.1 Hz to 10.0 Hz 1 kHz TA = temperature cycled from +25C to -40C to +125C and back to +25C 1000 hours at 60C IL = 0 mA, CL = 0.1 F, CIN = 0.1 F, RL = 1 k 2.1 64.2 50 25 135 0.1 Rev. 0 | Page 6 of 32 100 Unit V % V % mV % ppm/C ppm/C ppm/V ppm/mA ppm/mA A mV mV dB mA mA V p-p nV/Hz ppm ppm s F Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 ADR4540 ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN = 4.2 V to 15 V, IL = 0 mA, TA = 25C. Table 7. Parameter OUTPUT VOLTAGE INITIAL OUTPUT VOLTAGE ERROR Symbol VOUT VOUT_ERR Test Conditions/Comments Min Typ 4.096 B grade 0.02 820 0.04 1.64 A grade SOLDER HEAT SHIFT TEMPERATURE COEFFICIENT TCVOUT LINE REGULATION LOAD REGULATION VOUT/VIN VOUT/IL QUIESCENT CURRENT DROPOUT VOLTAGE IQ VDO RIPPLE REJECTION RATIO OUTPUT CURRENT CAPACITY Sinking Sourcing OUTPUT VOLTAGE NOISE OUTPUT VOLTAGE NOISE DENSITY OUTPUT VOLTAGE HYSTERESIS RRR IL LONG-TERM DRIFT TURN-ON SETTLING TIME LOAD CAPACITANCE VOUT_LTD tR Max 0.02 B grade, -40C TA +125C A grade, -40C TA +125C -40C TA +125C IL = 0 mA to +10 mA source, -40C TA +125C IL = 0 mA to -10 mA sink, -40C TA +125C -40C TA +125C, no load -40C TA +125C, no load -40C TA +125C, IL = 2 mA fIN = 1 kHz 1 25 50 700 2 4 10 80 120 950 100 300 90 -10 10 eNp-p eN VOUT_HYS 0.1 Hz to 10.0 Hz 1 kHz TA = temperature cycled from +25C to -40C to +125C and back to +25C 1000 hours at 60C IL = 0 mA, CL = 0.1 F, CIN = 0.1 F, RL = 1 k 2.7 83.5 50 25 155 0.1 Rev. 0 | Page 7 of 32 100 Unit V % V % mV % ppm/C ppm/C ppm/V ppm/mA ppm/mA A mV mV dB mA mA V p-p nV/Hz ppm ppm s F ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet ADR4550 ELECTRICAL CHARACTERISTICS Unless otherwise noted, VIN = 5.1 V to 15 V, IL = 0 mA, TA = 25C. Table 8. Parameter OUTPUT VOLTAGE INITIAL OUTPUT VOLTAGE ERROR Symbol VOUT VOUT_ERR Test Conditions/Comments Min Typ 5.000 B grade 0.02 1 0.04 2 A grade SOLDER HEAT SHIFT TEMPERATURE COEFFICIENT TCVOUT LINE REGULATION LOAD REGULATION VOUT/VIN VOUT/IL QUIESCENT CURRENT DROPOUT VOLTAGE IQ VDO RIPPLE REJECTION RATIO OUTPUT CURRENT CAPACITY Sinking Sourcing OUTPUT VOLTAGE NOISE OUTPUT VOLTAGE NOISE DENSITY OUTPUT VOLTAGE HYSTERESIS RRR IL LONG-TERM DRIFT TURN-ON SETTLING TIME LOAD CAPACITANCE VOUT_LTD tR Max 0.02 B grade, -40C TA +125C A grade, -40C TA +125C -40C TA +125C IL = 0 mA to +10 mA source, -40C TA +125C IL = 0 mA to -10 mA sink, -40C TA +125C -40C TA +125C, no load -40C TA +125C, no load -40C TA +125C, IL = 2 mA fIN = 1 kHz 1 25 35 700 2 4 10 80 120 950 100 300 90 -10 10 eNp-p eN VOUT_HYS 0.1 Hz to 10.0 Hz 1 kHz TA = temperature cycled from +25C to -40C to +125C and back to +25C 1000 hours at 60C IL = 0 mA, CL = 0.1 F, CIN = 0.1 F, RL = 1 k 2.8 95.3 50 25 160 0.1 Rev. 0 | Page 8 of 32 100 Unit V % mV % mV % ppm/C ppm/C ppm/V ppm/mA ppm/mA A mV mV dB mA mA V p-p nV/Hz ppm ppm s F Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 ABSOLUTE MAXIMUM RATINGS TA = 25C, unless otherwise noted. THERMAL RESISTANCE Table 9. JA is specified for the worst-case conditions; that is, a device soldered in a circuit board for surface-mount packages. Parameter Supply Voltage Operating Temperature Range Storage Temperature Range Junction Temperature Range Rating 16 V -40C to +125C -65C to +150C -65C to +150C Table 10. Thermal Resistance Package Type 8-Lead SOIC Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ESD CAUTION Rev. 0 | Page 9 of 32 JA 120 JC 42 Unit C/W ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ADR4520/ADR4525/ ADR4530/ADR4533/ ADR4540/ADR4550 NC 1 8 TP VIN 2 7 NC 6 VOUT TOP VIEW GND 4 (Not to Scale) 5 NC NOTES 1. NC = NO CONNECT. 2. TP = TEST PIN. DO NOT CONNECT. Figure 2. Pin Configuration Table 11. Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 Mnemonic NC VIN NC GND NC VOUT NC TP Description No Connect. This pin is not connected internally. Input Voltage Connection. No Connect. This pin is not connected internally. Ground. No Connect. This pin is not connected internally. Output Voltage. No Connect. This pin is not connected internally. Test Pin. Do not connect. Rev. 0 | Page 10 of 32 10203-002 NC 3 Data Sheet Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 TYPICAL PERFORMANCE CHARACTERISTICS TA = 25C, unless otherwise noted. ADR4520 2.0485 1.6 ADR4520 2.0484 ADR4520 1.4 +125C DROPOUT VOLTAGE (V) 2.0483 VOUT (V) 2.0482 2.0481 2.0480 2.0479 2.0478 1.2 +25C 1.0 -40C 0.8 0.6 0.4 2.0477 -30 -10 10 30 50 70 90 110 0 10203-101 2.0475 -50 130 TEMPERATURE (C) -10 0 2 4 6 8 10 ADR4520 30 LOAD REGULATION (ppm/mA) 2.0 1.5 1.0 25 20 15 10 10203-103 -200 -190 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 -60 VOUT_HYS (ppm) -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 10203-107 5 0.5 Figure 7. ADR4520 Load Regulation vs. Temperature (Sourcing) Figure 4. ADR4520 Thermally Induced Output Voltage Hysteresis Distribution 100 ADR4520 ADR4520 90 LOAD REGULATION (ppm/mA) VIN (5V/DIV) 1 CIN = 0.1F COUT = 0.1F RL = 1k 2 CH1 5.00V CH2 1.00V M40.0s A CH1 9.10V 70 60 50 40 30 20 10 10203-104 VOUT (1V/DIV) 80 0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 8. ADR4520 Load Regulation vs. Temperature (Sinking) Figure 5. ADR4520 Output Voltage Start-Up Response Rev. 0 | Page 11 of 32 10203-108 NUMBER OF UNITS -2 35 2.5 0 -4 Figure 6. ADR4520 Dropout Voltage vs. Load Current ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 3.0 -6 ILOAD (mA) Figure 3. ADR4520 Output Voltage vs. Temperature 3.5 -8 10203-106 0.2 2.0476 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 1.4 Data Sheet 1k ADR4520 ADR4520 1.3 NOISE DENSITY (nV rms/ Hz) LINE REGULATION (ppm/V) 1.2 1.1 1.0 0.9 0.8 0.7 0.6 100 10 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 1 0.01 10203-109 0.4 -60 RIPPLE REJECTION RATIO (dB) +125C ISY (A) 100 1k 10k 100k 0 ADR4520 -10 CLOAD = 1F 800 +25C 10 Figure 12. ADR4520 Output Noise Spectral Density ADR4520 600 1 FREQUENCY (Hz) Figure 9. ADR4520 Line Regulation vs. Temperature 1000 0.1 10203-112 0.5 -40C 400 200 -20 -30 -40 -50 -60 -70 -80 -90 -100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VIN (V) -120 10 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 13. ADR4520 Ripple Rejection Ratio vs. Frequency Figure 10. ADR4520 Supply Current vs. Supply Voltage 120 100 ADR4520 T ADR4520 100 60 2 40 OUTPUT AC 20 0 0.4 0.7 1.0 1.3 1.6 1.9 2.2 2.5 OUTPUT VOLTAGE NOISE DISTRIBUTION (V p-p) 2.8 CIN = 0.1F COUT = 1F CH1 1.00V Figure 11. ADR4520 Output Voltage Noise (Maximum Amplitude from 0.1 Hz to 10 Hz) CH2 1.00mV B W M40.0s T 12.0% A CH1 Figure 14. ADR4520 Line Transient Response Rev. 0 | Page 12 of 32 7.02V 10203-114 1 10203-111 OCCURRENCE INPUT 80 10203-113 0 10203-110 -110 0 Data Sheet 60 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 80 ADR4520 ADR4520 ADR4525 60 ADR4530 ADR4533 ADR4540 40 ADR4550 40 VOUT DRIFT (ppm) OUTPUT IMPEDANCE () 50 RL = 1k CL = 1F RL = 1k CL = 10F 30 RL = 100k CL = 10F 20 RL = 100k CL = 1F 20 0 -20 -40 10 100 1k 10k 100k 1M FREQUENCY (Hz) ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 OCCURRENCE 10 8 6 4 OUTPUT VOLTAGE (%) 10203-116 -0.060 -0.055 -0.050 -0.045 -0.040 -0.035 -0.030 -0.025 -0.020 -0.015 -0.010 -0.005 0 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 2 0 0 100 200 300 400 500 600 700 800 900 1000 DURATION (Hours) Figure 17. ADR4520 Typical Long-Term Output Voltage Drift (1000 Hours) Figure 15. ADR4520 Output Impedance vs. Frequency 12 -80 Figure 16. ADR4520 Output Voltage Drift Distribution After Reflow (SHR Drift) Rev. 0 | Page 13 of 32 10203-117 0 10 10203-115 -60 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet ADR4525 2.5005 1.4 ADR4525 ADR4525 2.5004 1.2 +125C +25C DROPOUT VOLTAGE (V) 2.5003 VOUT (V) 2.5002 2.5001 2.5000 2.4999 2.4998 1.0 0.8 -40C 0.6 0.4 2.4997 0.2 -30 -10 10 30 50 70 90 110 0 -15 10203-201 2.4995 -50 130 TEMPERATURE (C) 10 15 ADR4525 30 LOAD REGULATION (ppm/mA) 2.0 1.5 1.0 25 20 15 10 10203-203 -200 -190 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 -60 VOUT_HYS (ppm) -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 19. ADR4525 Thermally Induced Output Voltage Hysteresis Distribution 10203-207 5 0.5 Figure 22. ADR4525 Load Regulation vs. Temperature (Sourcing) 100 ADR4525 ADR4525 90 1 LOAD REGULATION (ppm/mA) VIN (5V/DIV) VOUT (1V/DIV) 80 70 60 50 40 30 20 2 CH2 1.00V M40.0s A CH1 9.10V 10203-204 CH1 5.00V 10 0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 20. ADR4525 Output Voltage Start-Up Response Figure 23. ADR4525 Load Regulation vs. Temperature (Sinking) Rev. 0 | Page 14 of 32 10203-208 NUMBER OF UNITS 5 35 2.5 0 0 Figure 21. ADR4525 Dropout Voltage vs. Load Current ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 3.0 -5 ILOAD (mA) Figure 18. ADR4525 Output Voltage vs. Temperature 3.5 -10 10203-206 2.4996 Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 1.4 1k ADR4525 ADR4525 1.3 NOISE DENSITY (nV rms/ Hz) LINE REGULATION (ppm/V) 1.2 1.1 1.0 0.9 0.8 0.7 0.6 100 10 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 1 0.01 10203-209 0.4 -60 100 1k 10k 100k 0 ADR4525 -10 RIPPLE REJECTION RATIO (dB) 800 700 600 +25C -40C 500 400 300 200 100 -20 -30 -40 -50 -60 -70 -80 -90 -100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VIN (V) 10203-210 -110 0 -120 10 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 28. ADR4525 Ripple Rejection Ratio vs. Frequency Figure 25. ADR4525 Supply Current vs. Supply Voltage 160 100 ADR4525 T ADR4525 140 120 80 2 60 OUTPUT AC 1 40 20 0 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 OUTPUT VOLTAGE NOISE DISTRIBUTION (V p-p) 3.0 CH1 1.00V Figure 26. ADR4525 Output Voltage Noise (Maximum Amplitude from 0.1 Hz to 10 Hz) CH2 1.00mV B W M200s T 10.0% A CH1 Figure 29. ADR4525 Line Transient Response Rev. 0 | Page 15 of 32 4.08V 10203-214 CIN = 0.1F COUT = 1F 10203-211 OCCURRENCE INPUT 100 10203-213 ISY (A) 10 Figure 27. ADR4525 Output Noise Spectral Density ADR4525 +125C 1 FREQUENCY (Hz) Figure 24. ADR4525 Line Regulation vs. Temperature 900 0.1 10203-212 0.5 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 80 ADR4525 ADR4520 ADR4525 60 ADR4530 ADR4533 ADR4540 40 ADR4550 RL = 1k CL = 1F 60 VOUT DRIFT (ppm) OUTPUT IMPEDANCE () 70 50 RL = 1k CL = 10F 40 RL = 100k CL = 1F 30 RL = 100k CL = 10F 20 -20 100 1k 10k 100k 1M FREQUENCY (Hz) 10203-215 -60 0 10 12 ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 10 8 6 4 10203-216 -0.060 -0.055 -0.050 -0.045 -0.040 -0.035 -0.030 -0.025 -0.020 -0.015 -0.010 -0.005 0 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 2 OUTPUT VOLTAGE (%) -80 0 100 200 300 400 500 600 700 800 900 1000 DURATION (Hours) Figure 32. ADR4525 Typical Long-Term Output Voltage Drift (1000 Hours) Figure 30. ADR4525 Output Impedance vs. Frequency OCCURRENCE 0 -40 10 0 20 Figure 31. ADR4525 Output Voltage Drift Distribution After Reflow (SHR Drift) Rev. 0 | Page 16 of 32 10203-217 80 Data Sheet Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 ADR4530 3.0005 0.0009 ADR4530 3.0004 0.0008 3.0003 0.0007 -40C 3.0001 3.0000 0.0005 0.0004 2.9999 0.0003 2.9998 0.0002 2.9997 -30 -10 10 30 50 70 90 110 0 0 10203-301 2.9995 -50 130 TEMPERATURE (C) 4 5 6 7 8 9 10 11 1.4 12 13 ADR4530 DROPOUT VOLTAGE (V) 1.2 2.5 2.0 1.5 1.0 +125C 1.0 +25C 0.8 -40C 0.6 0.4 10203-303 -200 -190 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 -15 VOUT_HYS (ppm) -5 0 5 10 15 ILOAD (mA) Figure 34. ADR4530 Thermally Induced Output Voltage Hysteresis Distribution VIN (5V/DIV) -10 10203-306 0.2 0.5 0 3 Figure 36. ADR4530 Supply Current vs. Supply Voltage ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 3.0 2 VIN (V) Figure 33. ADR4530 Output Voltage vs. Temperature 3.5 1 10203-305 0.0001 2.9996 Figure 37. ADR4530 Dropout Voltage vs. Load Current 35 ADR4530 ADR4530 LOAD REGULATION (ppm/mA) 30 1 2 VOUT (1V/DIV) CH1 5.00V CH2 1.00V M40.0s A CH1 3.10V 20 15 10 5 10203-304 CIN = 0.1F COUT = 0.1F RL = 1k 25 0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 35. ADR4530 Output Voltage Start-Up Response Figure 38. ADR4530 Load Regulation vs. Temperature (Sourcing) Rev. 0 | Page 17 of 32 10203-307 NUMBER OF UNITS +25C 0.0006 ISY (A) VOUT (V) 3.0002 ADR4530 +125C ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet 100 100 ADR4530 90 80 80 70 70 50 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 0 OUTPUT VOLTAGE NOISE DISTRIBUTION (V p-p) Figure 39. ADR4530 Load Regulation vs. Temperature (Sinking) 1.4 10203-311 -40 2.9 10 0 -60 2.7 10 2.5 20 2.3 30 20 2.1 30 1.9 40 1.7 40 60 1.5 50 1.1 60 1.3 OCCURRENCE 90 10203-308 LOAD REGULATION (ppm/mA) ADR4530 Figure 42. ADR4530 Output Voltage Noise (Maximum Amplitude from 0.1 Hz to 10 Hz) 1k ADR4530 ADR4530 1.3 NOISE DENSITY (nV rms/ Hz) LINE REGULATION (ppm/V) 1.2 1.1 1.0 0.9 0.8 0.7 0.6 100 10 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 1 0.01 10203-309 0.4 -60 100 1k 10k 100k 0 ADR4530 -10 RIPPLE REJECTION RATIO (dB) 800 700 +125C 600 +25C 500 400 300 200 100 -20 -30 -40 -50 -60 -70 -80 -90 -100 0 0 1 2 3 4 5 6 7 8 9 10 11 12 VIN (V) 13 -120 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 44. ADR4530 Ripple Rejection Ratio vs. Frequency Figure 41. ADR4530 Supply Current vs. Supply Voltage Rev. 0 | Page 18 of 32 10203-313 -110 10203-310 ISY (A) 10 Figure 43. ADR4530 Output Noise Spectral Density ADR4530 -40C 1 FREQUENCY (Hz) Figure 40. ADR4530 Line Regulation vs. Temperature 900 0.1 10203-312 0.5 Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 12 ADR4530 T ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 10 OCCURRENCE INPUT 2 8 6 4 OUTPUT AC 2 B CH2 1.00mV W M200s T 10.0% A CH1 7.02V 0 OUTPUT VOLTAGE (%) Figure 45. ADR4530 Line Transient Response 60 Figure 47. ADR4530 Output Voltage Drift Distribution After Reflow (SHR Drift) 80 ADR4530 ADR4520 ADR4525 60 ADR4530 ADR4533 ADR4540 40 ADR4550 30 RL = 1k CL = 10F VOUT DRIFT (ppm) 40 RL = 1k CL = 1F RL = 100k CL = 10F RL = 100k CL = 1F 20 0 -20 -40 10 0 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) 10M -80 0 100 200 300 400 500 600 700 800 900 1000 DURATION (Hours) Figure 48. ADR4530 Typical Long-Term Output Voltage Drift (1000 Hours) Figure 46. ADR4530 Output Impedance vs. Frequency Rev. 0 | Page 19 of 32 10203-317 -60 10203-315 OUTPUT IMPEDANCE () 50 20 10203-316 CH1 1.00V -0.060 -0.055 -0.050 -0.045 -0.040 -0.035 -0.030 -0.025 -0.020 -0.015 -0.010 -0.005 0 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 1 10203-314 CIN = 0.1F COUT = 1F ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet ADR4533 3.3010 1.0 ADR4533 ADR4533 3.3008 +125C 3.3006 DROPOUT VOLTAGE (V) 0.8 VOUT (V) 3.3004 3.3002 3.3000 3.2998 3.2996 +25C 0.6 -40C 0.4 0.2 3.2994 -30 -10 10 30 50 70 90 110 0 -15 10203-401 3.2990 -50 130 TEMPERATURE (C) 10 15 ADR4533 30 LOAD REGULATION (ppm/mA) 2.0 1.5 1.0 25 20 15 10 10203-403 -200 -190 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 -60 VOUT_HYS (ppm) -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 53. ADR4533 Load Regulation vs. Temperature (Sourcing) Figure 50. ADR4533 Thermally Induced Output Voltage Hysteresis Distribution VIN (5V/DIV) -40 10203-407 5 0.5 100 ADR4533 ADR4533 LOAD REGULATION (ppm/mA) 90 1 2 CIN = 0.1F COUT = 0.1F RL = 1k CH1 5.00V CH2 1.00V M40.0s A CH1 3.10V 70 60 50 40 30 20 10 10203-404 VOUT (1V/DIV) 80 0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 51. ADR4533 Output Voltage Start-Up Response Figure 54. ADR4533 Load Regulation vs. Temperature (Sinking) Rev. 0 | Page 20 of 32 10203-408 NUMBER OF UNITS 5 35 2.5 0 0 Figure 52. ADR4533 Dropout Voltage vs. Load Current ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 3.0 -5 ILOAD (mA) Figure 49. ADR4533 Output Voltage vs. Temperature 3.5 -10 10203-406 3.2992 Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 1.2 1k ADR4533 ADR4533 1.1 NOISE DENSITY (nV rms/ Hz) LINE REGULATION (ppm/V) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 100 10 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 1 0.01 10203-409 0.2 -60 10 100 1k 10k 100k Figure 58. ADR4533 Output Noise Spectral Density 0 ADR4533 1 FREQUENCY (Hz) Figure 55. ADR4533 Line Regulation vs. Temperature 900 0.1 10203-412 0.3 +125C ADR4533 -10 800 RIPPLE REJECTION RATIO (dB) -20 700 +25C ISY (A) 600 -40C 500 400 300 200 -30 -40 -50 -60 -70 -80 -90 -100 -110 100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VIN (V) -130 0.01 0.1 1 10 100 1k 10k 100k FREQUENCY (kHz) Figure 56. ADR4533 Supply Current vs. Supply Voltage Figure 59. ADR4533 Ripple Rejection Ratio vs. Frequency 60 ADR4533 T ADR4533 50 INPUT 30 2 20 OUTPUT AC 10 10203-411 OUTPUT VOLTAGE NOISE DISTRIBUTION (V p-p) 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 0 CH1 1.00V CH2 1.00mV B W M200s T 12.0% A CH1 Figure 60. ADR4533 Line Transient Response Figure 57. ADR4533 Output Voltage Noise (Maximum Amplitude from 0.1 Hz to 10 Hz) Rev. 0 | Page 21 of 32 7.02V 10203-414 CIN = 0.1F COUT = 1F 1 BIN OCCURRENCE 40 10203-413 0 10203-410 -120 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 60 80 ADR4533 ADR4520 ADR4525 60 ADR4530 ADR4533 ADR4540 40 ADR4550 40 30 VOUT DRIFT (ppm) OUTPUT IMPEDANCE () 50 RL = 1k CL = 1F RL = 1k CL = 10F 20 Data Sheet RL = 100k CL = 10F RL = 100k CL = 1F 20 0 -20 -40 10 1 10 100 1k 10k 100k 1M 10203-415 0 10M FREQUENCY (Hz) ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 OCCURRENCE 10 8 6 4 OUTPUT VOLTAGE (%) 10203-416 -0.060 -0.055 -0.050 -0.045 -0.040 -0.035 -0.030 -0.025 -0.020 -0.015 -0.010 -0.005 0 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 2 0 0 100 200 300 400 500 600 700 800 900 1000 DURATION (Hours) Figure 63. ADR4533 Typical Long-Term Output Voltage Drift (1000 Hours) Figure 61. ADR4533 Output Impedance vs. Frequency 12 -80 Figure 62. ADR4533 Output Voltage Drift Distribution After Reflow (SHR Drift) Rev. 0 | Page 22 of 32 10203-417 -60 Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 ADR4540 4.0970 0.8 ADR4540 ADR4540 0.7 +125C DROPOUT VOLTAGE (V) VOUT (V) 4.0965 4.0960 4.0955 0.6 +25C 0.5 -40C 0.4 0.3 0.2 -30 -10 10 30 50 70 90 110 0 -15 10203-501 4.0950 -50 130 TEMPERATURE (C) 10 15 ADR4540 30 LOAD REGULATION (ppm/mA) 2.0 1.5 1.0 25 20 15 10 10203-503 -200 -190 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 -60 VOUT_HYS (ppm) -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 68. ADR4540 Load Regulation vs. Temperature (Sourcing) Figure 65. ADR4540 Thermally Induced Output Voltage Hysteresis Distribution VIN (5V/DIV) -40 10203-507 5 0.5 100 ADR4540 ADR4540 LOAD REGULATION (ppm/mA) 90 1 2 CIN = 0.1F COUT = 0.1F RL = 1k CH1 5.00V CH2 1.00V M40.0s A CH1 3.10V 70 60 50 40 30 20 10 10203-504 VOUT (1V/DIV) 80 0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 66. ADR4540 Output Voltage Start-Up Response Figure 69. ADR4540 Load Regulation vs. Temperature (Sinking) Rev. 0 | Page 23 of 32 10203-508 NUMBER OF UNITS 5 35 2.5 0 0 Figure 67. ADR4540 Dropout Voltage vs. Load Current ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 3.0 -5 ILOAD (mA) Figure 64. ADR4540 Output Voltage vs. Temperature 3.5 -10 10203-506 0.1 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 1.0 Data Sheet 1k ADR4540 ADR4540 0.9 NOISE DENSITY (nV rms/ Hz) LINE REGULATION (ppm/V) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 100 10 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) 1 0.01 10203-509 0 -60 +125C 100 1k 10k 100k ADR4540 -10 RIPPLE REJECTION RATIO (dB) 800 700 +25C 600 -40C 500 400 300 200 100 -20 -30 -40 -50 -60 -70 -80 -90 -100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VIN (V) 10203-510 -110 0 -120 10 100 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) Figure 74. ADR4540 Ripple Rejection Ratio vs. Frequency Figure 71. ADR4540 Supply Current vs. Supply Voltage 70 ADR4540 T ADR4540 60 INPUT 40 30 2 OUTPUT AC 20 10 Figure 72. ADR4540 Output Voltage Noise (Maximum Amplitude from 0.1 Hz to 10 Hz) CH1 1.00V CH2 1.00mV B W M200s T 12.0% A CH1 Figure 75. ADR4540 Line Transient Response Rev. 0 | Page 24 of 32 7.02V 10203-514 10203-511 OUTPUT VOLTAGE NOISE DISTRIBUTION (V p-p) 3.9 3.7 3.5 3.3 3.1 2.9 2.7 2.5 2.3 2.1 0 CIN = 0.1F COUT = 1F 1 BIN OCCURRENCE 50 10203-513 ISY (A) 10 Figure 73. ADR4540 Output Noise Spectral Density 0 ADR4540 1 FREQUENCY (Hz) Figure 70. ADR4540 Line Regulation vs. Temperature 900 0.1 10203-512 0.1 Data Sheet 60 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 80 ADR4540 ADR4520 ADR4525 60 ADR4530 ADR4533 ADR4540 40 ADR4550 40 RL = 100k CL = 10F 30 RL = 100k CL = 1F RL = 1k CL = 10F 20 VOUT DRIFT (ppm) OUTPUT IMPEDANCE () 50 RL = 1k CL = 1F 20 0 -20 -40 10 1 10 100 1k 10k 100k 1M 10203-515 0 10M FREQUENCY (Hz) Figure 76. ADR4540 Output Impedance vs. Frequency 12 OCCURRENCE 8 6 4 OUTPUT VOLTAGE (%) 10203-516 -0.060 -0.055 -0.050 -0.045 -0.040 -0.035 -0.030 -0.025 -0.020 -0.015 -0.010 -0.005 0 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 2 0 0 100 200 300 400 500 600 700 800 900 1000 DURATION (Hours) Figure 78. ADR4540 Typical Long-Term Output Voltage Drift (1000 Hours) ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 10 -80 Figure 77. ADR4540 Output Voltage Drift Distribution After Reflow (SHR Drift) Rev. 0 | Page 25 of 32 10203-517 -60 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet ADR4550 5.0010 0.7 ADR4550 ADR4550 +125C 0.6 +25C DROPOUT VOLTAGE (V) VOUT (V) 5.0005 5.0000 4.9995 0.5 0.4 -40C 0.3 0.2 -30 -10 10 30 50 70 90 110 0 -15 10203-601 4.9990 -50 130 TEMPERATURE (C) 10 15 ADR4550 30 LOAD REGULATION (ppm/mA) 2.0 1.5 1.0 25 20 15 10 10203-603 -200 -190 -180 -170 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0 -60 VOUT_HYS (ppm) -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 80. ADR4550 Thermally Induced Output Voltage Hysteresis Distribution 10203-607 5 0.5 Figure 83. ADR4550 Load Regulation vs. Temperature (Sourcing) 100 ADR4550 ADR4550 90 LOAD REGULATION (ppm/mA) VIN (5V/DIV) VOUT (1V/DIV) 1 80 70 60 50 40 30 20 2 CH2 1.00V M40.0s A CH1 9.10V 10203-604 CH1 5.00V 10 0 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (C) Figure 84. ADR4550 Load Regulation vs. Temperature (Sinking) Figure 81. ADR4550 Output Voltage Start-Up Response Rev. 0 | Page 26 of 32 10203-608 NUMBER OF UNITS 5 35 2.5 0 0 Figure 82. ADR4550 Dropout Voltage vs. Load Current ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 3.0 -5 ILOAD (mA) Figure 79. ADR4550 Output Voltage vs. Temperature 3.5 -10 10203-606 0.1 Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 1.0 1k ADR4550 ADR4550 0.9 NOISE DENSITY (nV rms/ Hz) LINE REGULATION (ppm/V) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 100 10 0 50 100 150 TEMPERATURE (C) 1 0.01 10203-609 0 -50 ADR4550 1 10 100 1k 10k 100k FREQUENCY (Hz) Figure 85. ADR4550 Line Regulation vs. Temperature 900 0.1 10203-612 0.1 Figure 88. ADR4550 Output Noise Spectral Density 0 +125C ADR4550 RIPPLE REJECTION RATIO (dB) 800 700 +25C ISY (A) 600 -40C 500 400 300 200 -20 -40 -60 -80 -100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VIN (V) -120 0.01 1 10 100 1k 10k 100k FREQUENCY (Hz) Figure 86. ADR4550 Supply Current vs. Supply Voltage 9 0.1 Figure 89. ADR4550 Ripple Rejection Ratio vs. Frequency ADR4550 T ADR4550 8 7 5 4 2 3 OUTPUT AC 2 0 1 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 OUTPUT VOLTAGE NOISE DISTRIBUTION (V p-p) 3.7 CH1 1.00V Figure 87. ADR4550 Output Voltage Noise (Maximum Amplitude from 0.1 Hz to 10 Hz) CH2 1.00mV B W M200s T 12.0% A CH1 Figure 90. ADR4550 Line Transient Response Rev. 0 | Page 27 of 32 7.02V 10203-614 CIN = 0.1F COUT = 1F 1 10203-611 OCCURRENCE INPUT 6 10203-613 0 10203-610 100 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 120 ADR4520 ADR4525 60 ADR4530 ADR4533 ADR4540 40 ADR4550 RL = 100k CL = 1F 100 80 RL = 1k CL = 0.1F 60 40 RL = 1k CL = 1F -20 100 1k 10k 100k 1M FREQUENCY (Hz) 10203-615 -60 0 10 12 ADR4520 ADR4525 ADR4530 ADR4533 ADR4540 ADR4550 10 8 6 4 10203-616 -0.060 -0.055 -0.050 -0.045 -0.040 -0.035 -0.030 -0.025 -0.020 -0.015 -0.010 -0.005 0 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 0.045 0.050 0.055 0.060 2 OUTPUT VOLTAGE (%) -80 0 100 200 300 400 500 600 700 800 900 1000 DURATION (Hours) Figure 93. ADR4550 Typical Long-Term Output Voltage Drift (1000 Hours) Figure 91. ADR4550 Output Impedance vs. Frequency OCCURRENCE 0 -40 20 0 20 Figure 92. ADR4550 Output Voltage Drift Distribution After Reflow (SHR Drift) Rev. 0 | Page 28 of 32 10203-617 OUTPUT IMPEDANCE () 80 RL = 100k CL = 0.1F ADR4550 VOUT DRIFT (ppm) 140 Data Sheet Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 TERMINOLOGY Dropout Voltage (VDO) Dropout voltage, sometimes referred to as supply voltage headroom or supply output voltage differential, is defined as the minimum voltage differential between the input and output such that the output voltage is maintained to within 0.1% accuracy. VDO = (VIN - VOUT)min|IL = constant Because the dropout voltage depends on the current passing through the device, it is always specified for a given load current. In series mode devices, the dropout voltage typically increases proportionally to the load current (see Figure 6, Figure 21, Figure 37, Figure 52, Figure 67, and Figure 82). Temperature Coefficient (TCVOUT) The temperature coefficient relates the change in the output voltage to the change in the ambient temperature of the device, as normalized by the output voltage at 25C. This parameter is determined by the box method, which is represented by the following equation: TCVOUT = max{VOUT (T1 , T2 , T3 )} - min{VOUT (T1 , T2 , T3 )} VOUT (T2 ) x (T3 - T1 ) x 10 6 where: TCVOUT is expressed in ppm/C. VOUT(Tx) is the output voltage at Temperature Tx. T1 = -40C. T2 = +25C. T3 = +125C. This three-point method ensures that TCVOUT accurately portrays the maximum difference between any of the three temperatures at which the output voltage of the part is measured. The TCVOUT for the ADR4520/ADR4525/ADR4530/ADR4533/ ADR4540/ADR4550 is fully tested over three temperatures: -40C, +25C, and +125C. Long-Term Stability (VOUT_LTD) Long-term stability refers to the shift in the output voltage at 60C after 1000 hours of operation in a 60C environment. The ambient temperature is kept at 60C to ensure that the temperature chamber does not switch randomly between heating and cooling, which can cause instability over the 1000 hour measurement. This is also expressed as either a shift in voltage or a difference in ppm from the nominal output. VOUT _ LTD = VOUT _ 25C -VOUT _ TC VOUT _ 25C VOUT (t 0 ) x 10 6 [ppm] where: VOUT(t0) is the VOUT at 60C at Time 0. VOUT(t1) is the VOUT at 60C after 1000 hours of operation at 60C. Line Regulation Line regulation refers to the change in output voltage in response to a given change in input voltage and is expressed in percent per volt, ppm per volt, or V per volt change in input voltage. This parameter accounts for the effects of self-heating. Load Regulation Load regulation refers to the change in output voltage in response to a given change in load current and is expressed in V per mA, ppm per mA, or ohms of dc output resistance. This parameter accounts for the effects of self-heating. Solder Heat Resistance (SHR) Shift SHR shift refers to the permanent shift in output voltage that is induced by exposure to reflow soldering and is expressed in units of ppm. This shift is caused by changes in the stress exhibited on the die by the package materials when these materials are exposed to high temperatures. This effect is more pronounced in lead-free soldering processes due to higher reflow temperatures. Thermally Induced Output Voltage Hysteresis (VOUT_HYS) Thermally induced output voltage hysteresis represents the change in the output voltage after the device is exposed to a specified temperature cycle. This is expressed as either a shift in voltage or a difference in ppm from the nominal output. VOUT _ HYS = VOUT (t 1 ) - VOUT (t 0 ) x106 [ppm] where: VOUT_25C is the output voltage at 25C. VOUT_TC is the output voltage after temperature cycling. Rev. 0 | Page 29 of 32 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet THEORY OF OPERATION The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 series of references uses a unique core topology for extremely high accuracy, stability, and noise performance. Effect of Long-Term Drift on Voltage References, at www.analog.com for more information regarding the effects of long-term drift and how it can be minimized. Three parameters contribute to the accuracy of the dc output of a voltage reference: initial accuracy, temperature coefficient, and long-term drift. With an outstanding guaranteed initial error of 0.02% and a low temperature coefficient of 2 ppm/C maximum, this series of voltage references is perfect for high precision applications. The industry-leading long-term stability of the devices means that systems need less frequent field calibration and that there is a reduction in the costly preshipment system burn-in time. POWER DISSIPATION LONG-TERM DRIFT One of the key parameters of the ADR4520/ADR4525/ADR4530/ ADR4533/ADR4540/ADR4550 references is long-term stability--the output drift over time that the device is powered up. Regardless of output voltage, internal testing during development showed a typical drift of approximately 25 ppm after 1000 hours of continuous, nonloaded operation in a 60C extremely stable temperature controlled environment. Note that the majority of the long-term drift typically occurs in the first 200 hours to 300 hours of operation. For systems that require highly stable output voltages over long periods of time, the designer should consider burning in the devices prior to use to minimize the amount of output drift exhibited by the reference over time. See the AN-713 Application Note, The The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 voltage references are capable of sourcing and sinking up to 10 mA of load current at room temperature across the rated input voltage range. However, when used in applications subject to high ambient temperatures, the input voltage and load current should be carefully monitored to ensure that the device does not exceeded its maximum power dissipation rating. The maximum power dissipation of the device can be calculated via the following equation: PD = TJ - TA JA where: PD is the device power dissipation. TJ is the device junction temperature. TA is the ambient temperature. JA is the package (junction-to-air) thermal resistance. Due to this relationship, acceptable load current in high temperature conditions may be less than the maximum current sourcing capability of the device. In no case should the part be operated outside of its maximum power rating because doing so may result in premature failure or permanent damage to the device. Rev. 0 | Page 30 of 32 Data Sheet ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 APPLICATIONS INFORMATION BASIC VOLTAGE REFERENCE CONNECTION SAMPLE APPLICATIONS The circuit shown in Figure 94 illustrates the basic configuration for the ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 family of voltage references. Bipolar Output Reference VIN VREF 10203-054 2 VOUT 6 VIN +5V R1 10k Figure 94. ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Simplified Schematic 1F 0.1F ADR4550 0.1F R2 10k INPUT AND OUTPUT CAPACITORS GND 4 +15V Input Capacitors -5V ADA4000-1 A 1 F to 10 F electrolytic or ceramic capacitor can be connected to the input to improve transient response in applications where the supply voltage may fluctuate. An additional 0.1 F ceramic capacitor should be connected in parallel to reduce supply noise. R3 5k 10203-055 GND VIN -15V Figure 95. ADR4550 Bipolar Output Reference Output Capacitors Boosted Output Current Reference An output capacitor is required for stability and to filter out low level voltage noise. The minimum value of the output capacitor is shown in Table 12. Figure 96 shows a configuration for obtaining higher current drive capability from the ADR4520/ADR4525/ADR4530/ ADR4533/ADR4540/ADR4550 references without sacrificing accuracy. The op amp regulates the current flow through the MOSFET until VOUT equals the output voltage of the reference; current is then drawn directly from VIN instead of from the reference itself, allowing increased current drive capability. Table 12. Minimum COUT Value Part Number ADR4520, ADR4525 ADR4530, ADR4533, ADR4540, ADR4550 Minimum COUT Value 1.0 F 0.1 F VIN +16V U6 An additional 1 F to 10 F electrolytic or ceramic capacitor can be added in parallel to improve transient performance in response to sudden changes in load current; however, the designer should keep in mind that doing so will increase the turn-on time of the device. 2 R1 100 VOUT 6 2N7002 AD8663 VOUT 1F 0.1F LOCATION OF REFERENCE IN SYSTEM The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 reference should be placed as close to the load as possible to minimize the length of the output traces and, therefore, the error introduced by the voltage drop. Current flowing through a PCB trace produces an IR voltage drop; with longer traces, this drop can reach several millivolts or more, introducing considerable error into the output voltage of the reference. A 1 inch long, 5 mm wide trace of 1 ounce copper has a resistance of approximately 100 m at room temperature; at a load current of 10 mA, this can introduce a full millivolt of error. VIN ADR4520/ADR4525/ ADR4530/ADR4533/ ADR4540/ADR4550 GND 4 RL 200 CL PART NUMBER MINIMUM CL ADR4520, ADR4525 1.0F ADR4530, ADR4533, ADR4540, ADR4550 0.1F CL 0.1F 10203-056 BAND GAP Figure 95 shows a bipolar reference configuration. By connecting the output of the ADR4550 to the inverting terminal of an operational amplifier, it is possible to obtain both positive and negative reference voltages. R1 and R2 must be matched as closely as possible to ensure minimal difference between the negative and positive outputs. Resistors with low temperature coefficients must also be used if the circuit is used in environments with large temperature swings; otherwise, a voltage difference develops between the two outputs as the ambient temperature changes. Figure 96. Boosted Output Current Reference Because the current-sourcing capability of this circuit depends only on the ID rating of the MOSFET, the output drive capability can be adjusted to the application simply by choosing an appropriate MOSFET. In all cases, the VOUT pin should be tied directly to the load device to maintain maximum output voltage accuracy. Rev. 0 | Page 31 of 32 ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550 Data Sheet OUTLINE DIMENSIONS 5.00 (0.1968) 4.80 (0.1890) 1 5 6.20 (0.2441) 5.80 (0.2284) 4 1.27 (0.0500) BSC 0.25 (0.0098) 0.10 (0.0040) COPLANARITY 0.10 SEATING PLANE 0.50 (0.0196) 0.25 (0.0099) 1.75 (0.0688) 1.35 (0.0532) 0.51 (0.0201) 0.31 (0.0122) 45 8 0 0.25 (0.0098) 0.17 (0.0067) 1.27 (0.0500) 0.40 (0.0157) COMPLIANT TO JEDEC STANDARDS MS-012-AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 012407-A 8 4.00 (0.1574) 3.80 (0.1497) Figure 97. 8-Lead Standard Small Outline Package [SOIC_N] Narrow Body (R-8) Dimensions shown in millimeters and (inches) ORDERING GUIDE Model 1 ADR4520ARZ ADR4520ARZ-R7 ADR4520BRZ ADR4520BRZ-R7 ADR4525ARZ ADR4525ARZ-R7 ADR4525BRZ ADR4525BRZ-R7 ADR4530ARZ ADR4530ARZ-R7 ADR4530BRZ ADR4530BRZ-R7 ADR4533ARZ ADR4533ARZ-R7 ADR4533BRZ ADR4533BRZ-R7 ADR4540ARZ ADR4540ARZ-R7 ADR4540BRZ ADR4540BRZ-R7 ADR4550ARZ ADR4550ARZ-R7 ADR4550BRZ ADR4550BRZ-R7 1 Temperature Range -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C -40C to +125C Package Description 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N 8-Lead SOIC_N Z = RoHS Compliant Part. (c)2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D10203-0-4/12(0) Rev. 0 | Page 32 of 32 Package Option R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 R-8 Ordering Quantity 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 98 1,000 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Analog Devices Inc.: ADR4520ARZ ADR4550ARZ ADR4530BRZ ADR4550BRZ-R7 ADR4550ARZ-R7 ADR4525BRZ-R7 ADR4525ARZ-R7 ADR4540ARZ ADR4540BRZ-R7 ADR4533ARZ ADR4550BRZ ADR4530ARZ ADR4540BRZ ADR4533ARZ-R7 ADR4520BRZ-R7 ADR4520ARZ-R7 ADR4533BRZ ADR4530BRZ-R7 ADR4540ARZ-R7 ADR4520BRZ ADR4525ARZ ADR4533BRZ-R7 ADR4530ARZ-R7 ADR4525BRZ