MAX6043 Precision High-Voltage Reference in SOT23 General Description The MAX6043 precision voltage reference provides accurate preset +2.5V, +3.3V, +4.096V, +5.0V, and +10V reference voltages from up to +40V input voltages. The MAX6043 features a proprietary temperature coefficient curvature-correction circuit and lasertrimmed thin-film resistors that result in a very low temperature coefficient of 15ppm/C (max) and excellent initial accuracy of 0.05% (max). Low temperature drift and low noise make the MAX6043 ideal for use with high-resolution A/D or D/A converters. The MAX6043 draws 320A of supply current and sources 10mA or sinks 0.6mA of load current. The MAX6043 uses bandgap technology for low-noise performance and excellent accuracy. The MAX6043 does not require an output bypass capacitor for stability, and is stable with capacitive loads up to 100F. Eliminating the output bypass capacitor saves valuable board area in space-critical applications. The supply-independent, low supply current makes the MAX6043 ideal for battery-operated, high-performance systems. Features o +2.5V, +3.3V, +4.096V, +5.0V, or +10V Output Voltages o Excellent Temperature Stability: 15ppm/C (max) o Tight Initial Accuracy: 0.05% (max) o Tiny SOT23 Package o Wide +4.5V to +40V Supply Voltage Range o Low Noise: 4VP-P (typ at 2.5V Output) o Short-Circuit Protected o Wide Operating Temperature Range -40C to +125C o Stable with Capacitive Loads from 0 to 100F o No External Capacitors Required for Stability Pin Configuration TOP VIEW + I.C.* 1 The MAX6043 is available in a 6-pin SOT23 package and operates over the automotive (-40C to +125C) temperature range. GND 2 MAX6043 6 OUTS 5 OUTF 4 IN Applications Analog-to-Digital Converters I.C.* 3 Digital-to-Analog Converters SOT23 Digital Voltmeters Voltage Regulators *INTERNALLY CONNECTED. DO NOT CONNECT. Threshold Detectors Ordering Information PART MAX6043AAUT25-T OUTPUT VOLTAGE (V) TEMPCO (PPM/C) INITIAL ACCURACY (%) TOP MARK 2.500 15 0.06 ABRZ #ACMH MAX6043AAUT25#TG16 2.500 15 0.06 MAX6043BAUT25-T 2.500 20 0.10 ABDQ MAX6043BAUT25#TG16 2.500 20 0.10 #ACMI MAX6043CAUT25-T 2.500 65 0.50 ABDR MAX6043CAUT25#TG16 2.500 65 0.50 #ACMJ MAX6043AAUT33-T 3.300 15 0.06 ABSA #ACMK MAX6043AAUT33#TG16 3.300 15 0.06 MAX6043BAUT33-T 3.300 20 0.10 MAX6043BAUT33#TG16 3.300 20 0.10 #Denotes an RoHS-compliant device that may include lead that is exempt under the RoHS requirements. T = Tape and reel. Ordering Information continued at end of data sheet. Typical Operating Circuit appears at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maximintegrated.com. ABDS #ACML 19-3036; Rev 2; 8/12 MAX6043 Precision High-Voltage Reference in SOT23 ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +42V OUTF, OUTS to GND ...................................-0.3V to (VIN + 0.3V) Continuous Power Dissipation (TA = +70C) 6-Pin SOT23 (derate 9.1mW/C above +70C)............727mW OUT_ Short-Circuit Duration .....................................................5s Operating Temperature Range .........................-40C to +125C Storage Temperature Range .............................-65C to +150C Junction Temperature Range ............................-65C to +150C Maximum Junction Temperature .....................................+150C Lead Temperature (soldering, 10s) .................................+300C Soldering Temperature (reflow) RoHS-compliant package.............................................+245C Packages containing lead(Pb)......................................+240C Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS--VOUT = +2.5V (VIN = +5V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 2.4985 2.5000 2.5015 MAX6043B (0.1%) 2.4975 2.5000 2.5025 MAX6043C (0.5%) 2.4876 2.5000 2.5125 3 15 MAX6043B_25 5 25 MAX6043C_25 10 65 UNITS OUTPUT Output Voltage IOUT = 0, TA = +25C MAX6043A_25 Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) TA = -40C to +125C 4.5V < VIN < 40V Sourcing, 0 < IOUT < 10mA Sinking, -0.6mA < IOUT < 0mA OUT Short-Circuit Current TA = +25C TA = -40C to +125C TA = +25C ppm/C 1 6 1.5 10 8 70 70 900 TA = -40C to +125C ppm/V 70 TA = +25C TA = -40C to +125C V ppm/mA 900 Output shorted to GND 60 Output shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 4 VP-P 10Hz to 1kHz 7 VRMS 150 s To VOUT = 0.05% of final value, COUT = 50pF INPUT Supply Voltage Range Quiescent Supply Current 2 Inferred from line regulation test IOUT = 0 4.5 40.0 TA = +25C 320 490 TA = -40C to +125C 370 650 V A Maxim Integrated MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS--VOUT = +3.3V (VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 3.2980 3.3000 3.3020 MAX6043B (0.1%) 3.2967 3.3000 3.3033 MAX6043C (0.5%) 3.2836 3.3000 3.3165 MAX6043A_33 3 15 MAX6043B_33 5 25 MAX6043C_33 10 65 TA = +25C 1 6 TA = -40C to +125C 1.5 10 Sourcing, 0 IOUT 10mA TA = +25C 23 70 Sinking, -0.6mA IOUT 0mA TA = +25C UNITS OUTPUT Output Voltage Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current IOUT = 0, TA = +25C TA = -40C to +125C 5.3V VIN 40V TA = -40C to +125C 70 100 TA = -40C to +125C 900 V ppm/C ppm/V ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 5.3 VP-P 10Hz to 1kHz 9.5 VRMS To VOUT = 0.05% of final value, COUT = 50pF 180 s INPUT Supply Voltage Range Inferred from line regulation test Quiescent Supply Current IOUT = 0 Maxim Integrated 5.3 40.0 TA = +25C 320 490 TA = -40C to +125C 380 650 V A 3 MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS--VOUT = +4.096V (VIN = +10V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 4.0935 4.0960 4.0985 MAX6043B (0.1%) 4.0919 4.0960 4.1001 MAX6043C (0.5%) 4.0755 UNITS OUTPUT Output Voltage Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current IOUT = 0, TA = +25C 4.0960 4.1165 MAX6043A_41 3 15 MAX6043B_41 5 25 MAX6043C_41 10 65 TA = +25C 1 6 TA = -40C to +125C 1.5 10 Sourcing, 0 IOUT 10mA TA = +25C 19 70 Sinking, -0.6mA IOUT 0mA TA = +25C TA = -40C to +125C 6.1V VIN 40V TA = -40C to +125C ppm/C ppm/V 70 100 TA = -40C to +125C V 900 ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 6.6 VP-P 10Hz to 1kHz 12 VRMS To VOUT = 0.05% of final value, COUT = 50pF 200 s INPUT Supply Voltage Range Inferred from line regulation test Quiescent Supply Current IOUT = 0 4 6.1 40.0 TA = +25C 320 490 TA = -40C to +125C 380 650 V A Maxim Integrated MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS--VOUT = +5.0V (VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.06%) 4.9970 5.0000 5.0030 MAX6043B (0.1%) 4.9950 5.0000 5.0050 MAX6043C (0.5%) 4.9751 UNITS OUTPUT Output Voltage Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current IOUT = 0, TA = +25C 5.0000 5.0250 MAX6043A_50 3 15 MAX6043B_50 5 25 MAX6043C_50 10 65 TA = +25C 1 6 TA = -40C to +125C 1.5 10 Sourcing, 0 IOUT 10mA TA = +25C 32 70 Sinking, -0.6mA IOUT 0mA TA = +25C TA = -40C to +125C 7V VIN 40V TA = -40C to +125C 70 130 TA = -40C to +125C 900 V ppm/C ppm/V ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability t = 1000hr 150 ppm 0.1Hz to 10Hz 9.5 VP-P 10Hz to 1kHz 15 VRMS To VOUT = 0.05% of final value, COUT = 50pF 230 s DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time INPUT Supply Voltage Range Quiescent Supply Current Maxim Integrated Inferred from line regulation test IOUT = 0 7.0 40.0 TA = +25C 320 490 TA = -40C to +125C 380 650 V A 5 MAX6043 Precision High-Voltage Reference in SOT23 ELECTRICAL CHARACTERISTICS--VOUT = +10.0V (VIN = +15V, IOUT = 0, TA = TMIN to TMAX. Typical values are at TA = +25C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX MAX6043A (0.05%) 9.9950 10.0000 10.0050 MAX6043B (0.1%) 9.9900 10.0000 10.0100 MAX6043C (0.5%) 9.9500 UNITS OUTPUT Output Voltage Output-Voltage Temperature Coefficient (Note 2) Line Regulation (Note 4) Load Regulation (Note 4) OUT Short-Circuit Current IOUT = 0, TA = +25C 10.0000 10.0500 MAX6043A_10 3 15 MAX6043B_10 5 25 MAX6043C_10 10 65 TA = +25C 1 6 TA = -40C to +125C 1.5 10 Sourcing, 0 IOUT 10mA TA = +25C 16 70 Sinking, -0.6mA IOUT 0mA TA = +25C TA = -40C to +125C 12V VIN 40V TA = -40C to +125C ppm/C ppm/V 70 170 TA = -40C to +125C V 900 ppm/mA 900 OUT shorted to GND 60 OUT shorted to IN -2 mA Thermal Hysteresis (Note 3) 150 ppm Long-Term Stability t = 1000hr 150 ppm DYNAMIC CHARACTERISTICS Output Noise Voltage Turn-On Settling Time 0.1Hz to 10Hz 19 VP-P 10Hz to 1kHz 30 VRMS To VOUT = 0.05% of final value, COUT = 50pF 390 s INPUT Supply Voltage Range Inferred from line regulation test Quiescent Supply Current IOUT = 0 Note 1: Note 2: Note 3: Note 4: 6 12.0 40.0 TA = +25C 320 490 TA = -40C to +125C 390 650 V A All devices are 100% production tested at TA = +25C and guaranteed by design over TA = TMIN to TMAX as specified. Temperature coefficient is defined as VOUT divided by the temperature range. Thermal hysteresis defined as the change in output voltage at TA = +25C before and after cycling the device from TMAX to TMIN. Line and load regulation do not include the effect of self heating. Maxim Integrated MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25C, unless otherwise noted.) OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 10V) OUTPUT VOLTAGE (V) 2.5010 2.5005 2.5000 2.4995 2.4990 2.4985 2.4980 MAX6043 toc03 2 TA = +25C 0 TA = -40C -2 -4 -6 -8 -10 TA = +125C -12 TA = +85C -14 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C) TEMPERATURE (C) OUTPUT CURRENT (mA) LOAD REGULATION (SOURCING, VOUT = 2.5V) LOAD REGULATION (SINKING, VOUT = 10V) LOAD REGULATION (SINKING, VOUT = 2.5V) TA = +25C 20 1.0 TA = +25C -0.5 -1.5 10 5 0 TA = +85C 20 30 40 50 60 70 -3 -2 -3.0 0 -1 -1.5 -1.0 -0.5 0 LINE REGULATION (VOUT = 10V) MINIMUM INPUT-OUTPUT DIFFERENTIAL vs. LOAD CURRENT (VOUT = 2.5V) TA = +125C TA = +25C TA = -40C 0.200 0.100 TA = +25C 0 TA = -40C TA = +85C -0.100 -0.0250 16 20 24 28 INPUT VOLTAGE (V) 32 36 40 VOUT / VOUT = 0.1% 2.5 TA = -40C 2.0 TA = +25C 1.5 TA = +85C TA = +125C 1.0 0.5 0 -0.200 -0.0500 3.0 MINIMUM INPUT-OUTPUT DIFFERENTIAL (V) 0.400 VOUT (mV) 0.0250 0 MAX6043 toc08 MAX6043 toc07 0.500 0.300 TA = +85C Maxim Integrated -2.0 LINE REGULATION (VOUT = 2.5V) 0.0500 12 -2.5 OUTPUT CURRENT (mA) 0.1000 8 TA = +85C TA = +125C -2.0 -4 TA = +125C 4 -0.5 OUTPUT CURRENT (mA) 0.1500 0.0750 0 OUTPUT CURRENT (mA) 0.1750 0.1250 70 TA = -40C 0.5 -1.5 -15 10 60 TA = +125C -2.0 0 50 TA = +25C -1.0 TA = +85C -10 40 1.0 -5 TA = +125C 30 MAX6043 toc09 -1.0 20 1.5 VOUT (mV) 0 VOUT (mV) TA = -40C 10 2.0 TA = -40C 15 0.5 0 MAX6043 toc05 25 MAX6043 toc04 1.5 VOUT (mV) 4 -40 -25 -10 5 20 35 50 65 80 95 110 125 2.0 VOUT (mV) THREE TYPICAL UNITS MAX6043 toc06 2.5015 VOUT (mV) THREE TYPICAL UNITS OUTPUT VOLTAGE (V) 10.005 10.004 10.003 10.002 10.001 10.000 9.999 9.998 9.997 9.996 9.995 9.994 9.993 9.992 9.991 9.990 MAX6043 toc01 2.5020 LOAD REGULATION (SOURCING, VOUT = 10V) MAX6043 toc02 OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 2.5V) 12 16 20 24 28 32 INPUT VOLTAGE (V) 36 40 0 20 40 60 80 LOAD CURRENT (mA) 7 MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25C, unless otherwise noted.) -20 TA = +85C TA = +125C 1.0 0.5 0 20 -100 -120 1 10 100 1 0.1 1000 10 100 1000 FREQUENCY (kHz) OUTPUT IMPEDANCE vs. FREQUENCY SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 2.5V) SUPPLY CURRENT vs. INPUT VOLTAGE (VOUT = 10V) 0.1 1 10 100 320 280 240 TA = -40C 200 160 TA = +85C 440 TA = +25C TA = +85C 360 320 280 240 TA = +25C 200 TA = -40C 160 120 80 120 40 0 40 1000 TA = +125C 400 SUPPLY CURRENT (A) 1 TA = +125C 440 400 360 MAX6043 toc14 MAX6043 toc13 480 MAX6043 toc15 FREQUENCY (kHz) SUPPLY CURRENT (A) 80 0 0 4 8 0 12 16 20 24 28 32 36 40 4 12 16 20 24 28 32 36 40 8 FREQUENCY (kHz) INPUT VOLTAGE (V) INPUT VOLTAGE (V) SUPPLY CURRENT vs. TEMPERATURE (VOUT = 2.5V) SUPPLY CURRENT vs. TEMPERATURE (VOUT = 10V) OUTPUT NOISE-VOLTAGE DENSITY vs. FREQUENCY 380 360 340 320 300 380 360 340 320 300 280 280 260 260 240 240 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (C) TEMPERATURE (C) 10,000 MAX6043 toc18 VIN = 15V 400 SUPPLY CURRENT (A) 400 420 OUTPUT NOISE-VOLTAGE DENSITY (nV/Hz) 440 MAX6043 toc16 VIN = 5V MAX6043 toc17 OUTPUT IMPEDANCE () -100 0.1 0.01 SUPPLY CURRENT (A) -80 LOAD CURRENT (mA) 10 0.1 -60 -80 60 40 100 8 -60 -120 0 420 -40 PSRR (dB) PSRR (dB) TA = +25C 1.5 440 -20 -40 2.0 MAX6043 toc12 TA = -40C 0 MAX6043 toc11 VOUT / VOUT = 0.1% 2.5 0 MAX6043 toc10 MINIMUM INPUT-OUTPUT DIFFERENTIAL (V) 3.0 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 10V) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY (VOUT = 2.5V) MINIMUM INPUT-OUTPUT DIFFERENTIAL vs. LOAD CURRENT (VOUT = 10V) VOUT = 10V 1000 VOUT = 2.5V 100 0.1 1 10 100 1000 FREQUENCY (Hz) Maxim Integrated MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25C, unless otherwise noted.) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 2.5V) 0.1Hz TO 10Hz OUTPUT NOISE (VOUT = 10V) MAX6043 toc19 MAX6043 toc20 VOUT AC-COUPLED 1V/div VOUT AC-COUPLED 4V/div 1s/div 1s/div LOAD TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 10V) MAX6043 toc21 VIN = 5V COUT = 0F VOUT 50mV/div AC-COUPLED 2.5V 20mA MAX6043 toc22 VIN = 15V COUT = 0F VOUT 200mV/div AC-COUPLED 10V 20mA IOUT 10mA/div 0 IOUT 10mA/div 0 100s/div LOAD TRANSIENT (VOUT = 2.5V) 100s/div LOAD TRANSIENT (VOUT = 10V) MAX6043 toc23 VOUT 50mV/div AC-COUPLED 2.5V VOUT 100mV/div AC-COUPLED 10V 20mA 20mA IOUT 10mA/div IOUT 10mA/div 0 0 100s/div Maxim Integrated MAX6043 toc24 VIN = 15V COUT = 1F VIN = 5V COUT = 1F 100s/div 9 MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25C, unless otherwise noted.) LOAD TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 10V) MAX6043 toc25 VIN = 5V COUT = 0F VOUT 50mV/div AC-COUPLED 2.5V IOUT 2mA/div 0 -2mA VOUT 100mV/div AC-COUPLED 10V IOUT 2mA/div 0 -2mA 200s/div LOAD TRANSIENT (VOUT = 2.5V) MAX6043 toc26 VIN = 15V COUT = 0F 400s/div LINE TRANSIENT (VOUT = 2.5V) LOAD TRANSIENT (VOUT = 10V) MAX6043 toc28 MAX6043 toc27 VIN = 15V COUT = 1F VIN = 5V COUT = 1F VOUT 20mV/div AC-COUPLED 2.5V IOUT 2mA/div 0 5.5V VIN AC-COUPLED 500mV/div 4.5V VOUT 50mV/div AC-COUPLED 10V VOUT AC-COUPLED 10mV/div IOUT 2mA/div 0 -2mA -2mA LINE TRANSIENT (VOUT = 10V) 10s/div 400s/div 200s/div TURN-ON TRANSIENT (VOUT = 2.5V) MAX6043 toc30 TURN-ON TRANSIENT (VOUT = 10V) MAX6043 toc31 COUT = 0F 15.5V VIN AC-COUPLED 500mV/div 14.5V 5V VIN 2V/div 15V VIN 5V/div 0V 10V VOUT 1V/div 0V 10s/div MAX6043 toc32 COUT = 0F 0V VOUT 2.5V AC-COUPLED 10mV/div 10 MAX6043 toc29 VOUT 5V/div 0V 4s/div 40s/div Maxim Integrated MAX6043 Precision High-Voltage Reference in SOT23 Typical Operating Characteristics (continued) (VIN = +5V for VOUT = +2.5V, VIN = +10V for VOUT = +3.3V or +4.096V, VIN = +15V for VOUT = +5V or +10V, IOUT = 0, TA = +25C, unless otherwise noted.) TURN-ON TRANSIENT (VOUT = 10V) TURN-ON TRANSIENT (VOUT = 2.5V) MAX6043 toc33 TURN-OFF TRANSIENT (VOUT = 2.5V) MAX6043 toc34 COUT = 1F COUT = 1F MAX6043 toc35 COUT = 0F 15V 5V VIN 5V/div VIN 2V/div 0V 0V 2.5V 5V VIN 2V/div 0V 2.5V 10V VOUT 5V/div VOUT 1V/div 0V 0V 40s/div 40s/div TURN-OFF TRANSIENT (VOUT = 10V) 1s/div TURN-OFF TRANSIENT (VOUT = 2.5V) MAX6043 toc36 TURN-OFF TRANSIENT MAX6043 toc37 MAX6043 toc38 COUT = 1F COUT = 0F COUT = 1F 15V 15V 5V VIN 2V/div VIN 5V/div 0V 2.5V 0V VIN 5V/div 0V 10V 10V VOUT 1V/div VOUT 5V/div 0V 0V 20ms/div 40ms/div LONG-TERM DRIFT (VOUT = 2.5V) LONG-TERM DRIFT (VOUT = 10V) 125 OUTPUT VOLTAGE (ppm) 125 100 75 50 25 0 -25 -50 -75 -100 -125 -150 XMAX6043 toc40 150 MAX6043 toc39 150 OUTPUT VOLTAGE (ppm) VOUT 5V/div 0V 2s/div 100 75 50 25 0 -25 -50 -75 -100 -125 -150 0 200 400 600 TIME (hr) Maxim Integrated VOUT 1V/div 0V 800 1000 0 200 400 600 800 1000 TIME (hr) 11 MAX6043 Precision High-Voltage Reference in SOT23 Pin Description PIN NAME FUNCTION 1, 3 I.C. 2 GND 4 IN 5 OUTF Voltage-Reference Force Output. Connect OUTF to OUTS as close to the device as possible. OUTF and OUTS do not require a bypass capacitor for stability. 6 OUTS Voltage-Reference Sense Input Internally Connected. Do not connect externally. Ground Positive Power-Supply Input Applications Information Bypassing/Output Capacitance For the best line-transient performance, decouple the input with a 0.1F ceramic capacitor as shown in the Typical Operating Circuit. Place the capacitor as close to IN as possible. When transient performance is less important, no capacitor is necessary. The MAX6043 does not require an output capacitor for stability and is stable with capacitive loads up to 100F. In applications where the load or the supply can experience step changes, a larger output capacitor reduces the amount of overshoot (undershoot) and improves the circuit's transient response. Place output capacitors as close to the device as possible for best performance. Supply Current The MAX6043 consumes 320A of quiescent supply current. This improved efficiency reduces power dissipation and extends battery life. Thermal Hysteresis Thermal hysteresis is the change in the output voltage at TA = +25C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors. The typical thermal hysteresis value is 150ppm. 12 Turn-On Time The MAX6043 typically turns on and settles to within 0.05% of the preset output voltage in 150s. Short-Circuited Outputs The MAX6043 features a short-circuit-protected output. Internal circuitry limits the output current to 60mA when short-circuiting the output. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error In a data converter application, the reference voltage of the converter must stay within a certain limit to keep the error in the data converter smaller than the resolution limit through the operating temperature range. Figure 1 shows the maximum allowable reference-voltage temperature coefficient to keep the conversion error to less than 1 LSB, as a function of the operating temperature range (TMAX - TMIN) with the converter resolution as a parameter. The graph assumes the reference-voltage temperature coefficient as the only parameter affecting accuracy. In reality, the absolute static accuracy of a data converter is dependent on the combination of many parameters such as integral nonlinearity, differential nonlinearity, offset error, gain error, as well as voltage-reference changes. Maxim Integrated MAX6043 Precision High-Voltage Reference in SOT23 10,000 1000 100 TEMPERATURE COEFFICIENT (ppm/C) 8 BIT 10 10 BIT 12 BIT 1 14 BIT 16 BIT 0.1 18 BIT 0.01 1 20 BIT 100 10 OPERATING TEMPERATURE RANGE (TMAX - TMIN) (C) Figure 1. Temperature Coefficient vs. Operating Temperature Range for a 1 LSB Maximum Error Typical Operating Circuit INPUT SUPPLY IN OUTF OUTS REFERENCE OUTPUT (SEE ORDERING INFORMATION) MAX6043 0.1F* GND *INPUT CAPACITOR IS OPTIONAL. Maxim Integrated 13 MAX6043 Precision High-Voltage Reference in SOT23 Ordering Information (continued) OUTPUT VOLTAGE (V) TEMPCO (PPM/C) INITIAL ACCURACY (%) TOP MARK MAX6043CAUT33#TG16 3.300 65 0.50 #ACMM MAX6043AAUT41-T 4.096 15 0.06 ABSB PART MAX6043AAUT41#TG16 4.096 15 0.06 #ACMN MAX6043BAUT41-T 4.096 20 0.10 ABDU #ACMO MAX6043BAUT41#TG16 4.096 20 0.10 MAX6043CAUT41-T 4.096 65 0.50 ABDV MAX6043CAUT41#TG16 4.096 65 0.50 #ACMP MAX6043AAUT50-T 5.000 15 0.06 ABSC MAX6043AAUT50#TG16 5.000 15 0.06 #ACMQ MAX6043BAUT50-T 5.000 20 0.10 ABDW #ACMR MAX6043BAUT50#TG16 5.000 20 0.10 MAX6043CAUT50-T 5.000 65 0.50 ABDX MAX6043CAUT50#TG16 5.000 65 0.50 #ACMS MAX6043AAUT10-T 10.000 15 0.06 ABSD MAX6043AAUT10#TG16 10.000 15 0.06 #ACMT MAX6043BAUT10-T 10.000 20 0.10 ABDY #ACMU MAX6043BAUT10#TG16 10.000 20 0.10 MAX6043CAUT10-T 10.000 65 0.50 ABDZ MAX6043CAUT10#TG16 10.000 65 0.50 #ACMV #Denotes an RoHS-compliant device that may include lead that is exempt under the RoHS requirements. T = Tape and reel. Package Information Chip Information PROCESS: BiCMOS 14 For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 6 SOT23 U6FH-6 21-0058 90-0175 Maxim Integrated MAX6043 Precision High-Voltage Reference in SOT23 Revision History REVISION NUMBER REVISION DATE 0 11/03 Initial release 1 5/04 Added future product information, updated the Electrical Characteristics and Typical Operating Characteristics. 2 8/12 Updated the Ordering Information/Selector Guide, Absolute Maximum Ratings, and the Package Information sections. DESCRIPTION PAGES CHANGED -- 1-6, 11, 12 1, 14, 15 Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 ________________________________ 15 (c) 2012 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.