LTC2050/LTC2050HV Zero-Drift Operational Amplifiers in SOT-23 FEATURES DESCRIPTION Maximum Offset Voltage of 3V nn Maximum Offset Voltage Drift of 30nV/C nn Noise: 1.5V P-P (0.01Hz to 10Hz Typ) nn Voltage Gain: 140dB (Typ) nn PSRR: 130dB (Typ) nn CMRR: 130dB (Typ) nn Supply Current: 0.8mA (Typ) nn Supply Operation nn LTC2050: 2.7V to 6V nn LTC2050HV: 2.7V to 5.5V nn LTC2050HVMP: 4.5V to 5.5V nn Extended Common Mode Input Range nn Output Swings Rail-to-Rail nn Input Overload Recovery Time: 2ms (Typ) nn Operating Temperature Range nn LTC2050: -40C to 125C nn LTC2050HVMP: -55C to 150C nn Low Profile (1mm) SOT-23 (ThinSOTTM) Package The LTC(R)2050 and LTC2050HV are zero-drift operational amplifiers available in the 5- or 6-lead SOT-23 and SO-8 packages. The LTC2050 operates from a single 2.7V to 6V supply. The LTC2050HV operates on supplies from 2.7V to 5.5V. The current consumption is 800A and the versions in the 6-lead SOT-23 and SO-8 packages offer power shutdown (active low). The LTC2050HVMP offer operating range from 4.5V to 5.5V and operating temperature range of - 55C to 150C. nn APPLICATIONS Thermocouple Amplifiers Electronic Scales nn Medical Instrumentation nn Strain Gauge Amplifiers nn High Resolution Data Acquisition nn DC Accurate RC Active Filters nn Low Side Current Sense nn nn The LTC2050, despite its miniature size, features uncompromising DC performance. The typical input offset voltage and offset drift are 0.5V and 10nV/C. The almost zero DC offset and drift are supported with a power supply rejection ratio (PSRR) and common mode rejection ratio (CMRR) of more than 130dB. The input common mode voltage ranges from the negative supply up to typically 1V from the positive supply. The LTC2050 also has an enhanced output stage capable of driving loads as low as 2k to both supply rails. The open-loop gain is typically 140dB. The LTC2050 also features a 1.5VP-P DC to 10Hz noise and a 3MHz gain bandwidth product. All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. patents, including 5481178. TYPICAL APPLICATION Differential Bridge Amplifier Input Referred Noise 0.1Hz to 10Hz 2 5V 5V 50 GAIN TRIM 0.1F 0.1F 1 350 STRAIN GAUGE 4 - 5 LTC2050HV 3 0.1F + (V) 18.2k 1 AV = 100 0 -1 2 18.2k -2 2050 TA01a -5V 0 2 4 6 TIME (SEC) 8 10 2050 TA01b Rev. E Document Feedback For more information www.analog.com 1 LTC2050/LTC2050HV ABSOLUTE MAXIMUM RATINGS (Note 1) Total Supply Voltage (V + to V -) LTC2050..................................................................7V LTC2050HV...........................................................12V Input Voltage .........................(V + + 0.3V) to (V - - 0.3V) Output Short-Circuit Duration .......................... Indefinite Operating Temperature Range LTC2050............................................. -40C to 125C LTC2050HVMP................................... -55C to 150C Specified Temperature Range (Note 3)................................................... -55C to 150C Storage Temperature Range................... -65C to 150C Lead Temperature (Soldering, 10 sec).................... 300C PIN CONFIGURATION TOP VIEW OUT 1 5 V+ - V 2 +IN 3 TOP VIEW TOP VIEW OUT 1 V- 2 4 -IN +IN 3 S5 PACKAGE 5-LEAD PLASTIC TSOT-23 TJMAX = 150C, JA = 250C/W 6 V+ 5 SHDN 4 -IN S6 PACKAGE 6-LEAD PLASTIC TSOT-23 TJMAX = 150C, JA = 230C/W SHDN 1 8 NC -IN 2 7 V+ +IN 3 6 OUT 5 NC V- 4 S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150C, JA = 190C/W ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LTC2050CS5#PBF LTC2050CS5#TRPBF LTAEG 5-Lead Plastic TSOT-23 0C to 70C LTC2050IS5#PBF LTC2050IS5#TRPBF LTAEG 5-Lead Plastic TSOT-23 -40C to 85C LTC2050HS5#PBF LTC2050HS5#TRPBF LTAEG 5-Lead Plastic TSOT-23 -40C to 125C LTC2050HVCS5#PBF LTC2050HVCS5#TRPBF LTAEH 5-Lead Plastic TSOT-23 0C to 70C LTC2050HVIS5#PBF LTC2050HVIS5#TRPBF LTAEH 5-Lead Plastic TSOT-23 -40C to 85C LTC2050HVHS5#PBF LTC2050HVHS5#TRPBF LTAEH 5-Lead Plastic TSOT-23 -40C to 125C LTC2050CS6#PBF LTC2050CS6#TRPBF LTAEJ 6-Lead Plastic TSOT-23 0C to 70C LTC2050IS6#PBF LTC2050IS6#TRPBF LTAEJ 6-Lead Plastic TSOT-23 -40C to 85C LTC2050HS6#PBF LTC2050HS6#TRPBF LTAEJ 6-Lead Plastic TSOT-23 -40C to 125C LTC2050HVMPS6#PBF LTC2050HVMPS6#TRPBF LTHGP 6-Lead Plastic TSOT-23 -55C to 150C LTC2050HVCS6#PBF LTC2050HVCS6#TRPBF LTAEK 6-Lead Plastic TSOT-23 0C to 70C LTC2050HVIS6#PBF LTC2050HVIS6#TRPBF LTAEK 6-Lead Plastic TSOT-23 -40C to 85C LTC2050HVHS6#PBF LTC2050HVHS6#TRPBF LTAEK 6-Lead Plastic TSOT-23 -40C to 125C LTC2050CS8#PBF LTC2050CS8#TRPBF 2050 8-Lead Plastic SO 0C to 70C LTC2050IS8#PBF LTC2050IS8#TRPBF 2050I 8-Lead Plastic SO -40C to 85C LTC2050HVCS8#PBF LTC2050HVCS8#TRPBF 2050HV 8-Lead Plastic SO 0C to 70C 2 Rev. E For more information www.analog.com LTC2050/LTC2050HV ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LTC2050HVIS8#PBF LTC2050HVIS8#TRPBF 050HVI 8-Lead Plastic SO -40C to 85C LTC2050CS5 LTC2050CS5#TR LTAEG 5-Lead Plastic TSOT-23 0C to 70C LTC2050IS5 LTC2050IS5#TR LTAEG 5-Lead Plastic TSOT-23 -40C to 85C LTC2050HS5 LTC2050HS5#TR LTAEG 5-Lead Plastic TSOT-23 -40C to 125C LTC2050HVCS5 LTC2050HVCS5#TR LTAEH 5-Lead Plastic TSOT-23 0C to 70C LTC2050HVIS5 LTC2050HVIS5#TR LTAEH 5-Lead Plastic TSOT-23 -40C to 85C LTC2050HVHS5 LTC2050HVHS5#TR LTAEH 5-Lead Plastic TSOT-23 -40C to 125C LTC2050CS6 LTC2050CS6#TR LTAEJ 6-Lead Plastic TSOT-23 0C to 70C LTC2050IS6 LTC2050IS6#TR LTAEJ 6-Lead Plastic TSOT-23 -40C to 85C LTC2050HS6 LTC2050HS6#TR LTAEJ 6-Lead Plastic TSOT-23 -40C to 125C LTC2050HVCS6 LTC2050HVCS6#TR LTAEK 6-Lead Plastic TSOT-23 0C to 70C LTC2050HVIS6 LTC2050HVIS6#TR LTAEK 6-Lead Plastic TSOT-23 -40C to 85C LTC2050HVHS6 LTC2050HVHS6#TR LTAEK 6-Lead Plastic TSOT-23 -40C to 125C LTC2050CS8 LTC2050CS8#TR 2050 8-Lead Plastic SO 0C to 70C LTC2050IS8 LTC2050IS8#TR 2050I 8-Lead Plastic SO -40C to 85C LTC2050HVCS8 LTC2050HVCS8#TR 2050HV 8-Lead Plastic SO 0C to 70C LTC2050HVIS8 LTC2050HVIS8#TR 050HVI 8-Lead Plastic SO -40C to 85C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. Rev. E For more information www.analog.com 3 LTC2050/LTC2050HV ELECTRICAL CHARACTERISTICS (LTC2050/LTC2050HV) The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 3V unless otherwise noted. (Note 3) C, I SUFFIXES PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) MIN 0.5 LTC2050 Large-Signal Voltage Gain 50 V V/C nV/mo 75 4000 pA pA 1 50 100 1 l 50 4000 pA pA l 150 200 150 1000 pA pA l 100 150 100 1000 pA pA LTC2050 RS = 100, 0.01Hz to 10Hz LTC2050/LTC2050HV VCM = GND to (V+ - 1.3) VCM = GND to (V+ - 1.3) 3 0.05 UNITS 20 Input Capacitance Power Supply Rejection Ratio 0.5 MAX 75 300 LTC2050HV Common Mode Rejection Ratio 3 TYP 20 LTC2050HV Input Noise Voltage MIN 50 l Input Offset Current MAX 0.03 l Long-Term Offset Drift Input Bias Current TYP H SUFFIX 1.5 1.5 VP-P 1.7 1.7 pF l 115 110 130 130 115 110 130 130 dB dB l 120 115 130 130 120 115 130 130 dB dB l 120 115 140 140 120 115 140 140 dB dB 2.85 2.95 2.94 2.98 2.85 2.95 2.94 2.98 V V VS = 2.7V to 6V RL = 10k Output Voltage Swing High RL = 2k to GND RL = 10k to GND l l Output Voltage Swing Low RL = 2k to GND RL = 10k to GND l l 1 1 10 10 1 1 10 10 mV mV Slew Rate 2 2 V/s Gain Bandwidth Product 3 3 MHz Supply Current VSHDN = VIH, No Load VSHDN = VIL Shutdown Pin Input Low Voltage (VIL) Internal Sampling Frequency 4 l VSHDN = GND l 1.1 10 0.75 V - + 0.5 l Shutdown Pin Input High Voltage (VIH) Shutdown Pin Input Current 0.75 l l V+ - 0.5 1.2 10 V - + 0.5 V+ - 0.5 -0.5 7.5 -3 mA A V V -0.5 7.5 -3 A kHz Rev. E For more information www.analog.com LTC2050/LTC2050HV ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. (LTC2050/LTC2050HV) VS = 5V unless otherwise noted. (Note 3) C, I SUFFIXES PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) LTC2050HVMP MIN MAX 0.5 3 MIN TYP MAX 0.5 3 0.03 l l Long-Term Offset Drift Input Bias Current H, MP SUFFIX TYP 0.05 0.10 50 LTC2050 150 4000 pA pA 7 50 150 7 50 4000 pA pA 7 50 8000 pA pA l LTC2050 l 300 400 300 1000 pA pA l 100 200 100 1000 pA pA 2000 pA LTC2050HV l Input Noise Voltage RS = 100, 0.01Hz to 10Hz Common Mode Rejection Ratio LTC2050/LTC2050HV VCM = GND to (V+ - 1.3) VCM = GND to (V+ - 1.3) l LTC2050HVMP VCM = GND to (V+ - 1.3) l Power Supply Rejection Ratio 1.5 VS = 2.7V to 6V l LTC2050HVMP VS = 4.5V to 11V Large-Signal Voltage Gain nV/mo 75 LTC2050HVMP LTC2050HVMP V/C V/C 150 300 l Input Offset Current V 75 l LTC2050HV 50 UNITS 120 115 120 115 130 130 130 130 l RL = 10k 1.5 VP-P 120 110 130 130 dB dB 107 130 dB 120 115 130 130 dB dB 117 112 130 130 dB dB l 125 120 140 140 125 115 140 140 dB dB 4.85 4.95 4.94 4.98 4.85 4.95 4.94 4.98 V V Output Voltage Swing High RL = 2k to GND RL = 10k to GND l l Output Voltage Swing Low RL = 2k to GND RL = 10k to GND l l 1 1 10 10 1 1 10 10 mV mV Slew Rate 2 2 V/s Gain Bandwidth Product 3 3 MHz Supply Current VSHDN = VIH, No Load VSHDN = VIL Shutdown Pin Input Low Voltage (VIL) Internal Sampling Frequency l VSHDN = GND l 1.2 15 0.8 V- + 0.5 l Shutdown Pin Input High Voltage (VIH) Shutdown Pin Input Current 0.8 l l V+ - 0.5 1.3 15 V- + 0.5 V -7 A V+ - 0.5 -0.5 7.5 -7 mA A V -0.5 7.5 kHz Rev. E For more information www.analog.com 5 LTC2050/LTC2050HV ELECTRICAL CHARACTERISTICS (LTC2050HV) The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25C. VS = 5V unless otherwise noted. (Note 3) C, I SUFFIXES PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) LTC2050HVMP MIN MAX 0.5 3 MIN TYP MAX 0.5 3 0.03 l l Long-Term Offset Drift Input Bias Current (Note 4) H, MP SUFFIX TYP 0.05 0.10 50 LTC2050HV 25 l 50 125 300 LTC2050HVMP LTC2050HV LTC2050HVMP RS = 100, 0.01Hz to 10Hz Common Mode Rejection Ratio LTC2050HV VCM = V- to (V+ - 1.3) VCM = V- to (V+ - 1.3) l LTC2050HVMP VCM = V- to (V+ - 1.3) l Power Supply Rejection Ratio 1.5 VS = 2.7V to 11V l LTC2050HVMP VS = 4.5 to 11V Large-Signal Voltage Gain Maximum Output Voltage Swing 120 115 130 130 120 115 130 130 l RL = 10k RL = 2k to GND RL = 10k to GND 25 125 8000 pA pA 250 1000 pA pA 2000 pA 120 115 130 130 dB dB 112 130 dB 120 115 130 130 dB dB 117 112 130 130 dB dB 140 140 125 120 140 140 dB dB l l 4.75 4.90 4.94 4.98 4.50 4.85 4.94 4.98 V V 2 2 3 VSHDN = VIH, No Load VSHDN = VIL l Shutdown Pin Input High Voltage (VIH) l VSHDN = V- 1 l l Shutdown Pin Input Low Voltage (VIL) l Internal Sampling Frequency V/s 3 1.5 25 1 V - + 0.5 V + - 0.5 MHz 1.6 25 V - + 0.5 V + - 0.5 -3 7.5 Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: These parameters are guaranteed by design. Thermocouple effects preclude measurements of these voltage levels during automated testing. Note 3: All versions of the LTC2050 are designed, characterized and expected to meet the extended temperature limits of - 40C and 125C. 6 VP-P 125 120 Gain Bandwidth Product Shutdown Pin Input Current 1.5 l Slew Rate Supply Current nV/mo pA pA l Input Noise Voltage V/C V/C 125 4000 250 500 l V 25 l Input Offset Current (Note 4) UNITS -20 mA A V V -3 7.5 -20 A kHz The LTC2050C/LTC2050HVC are guaranteed to meet the temperature limits of 0C and 70C. The LTC2050I/LTC2050HVI are guaranteed to meet the temperature limits of -40C and 85C. The LTC2050H/LTC2050HVH are guaranteed to meet the temperature limits of -40C and 125C. The are guaranteed to meet the temperature limits of -55C and 150C. Note 4: The bias current measurement accuracy depends on the proximity of the supply bypass capacitor to the device under test, especially at 5V supplies. Because of testing limitations on the placement of this bypass capacitor, the bias current at 5V supplies is guaranteed by design to meet the data sheet limits, but tested to relaxed limits. Rev. E For more information www.analog.com LTC2050/LTC2050HV TYPICAL PERFORMANCE CHARACTERISTICS Common Mode Rejection Ratio vs Frequency 140 DC CMRR vs Common Mode Input Voltage VS = 3V OR 5V VCM = 0.5VP-P 120 120 100 -PSRR 80 60 80 40 20 20 0 0 10k 100 1k FREQUENCY (Hz) 100k 6 0 2 1 3 4 10 100 2050 G02 OUTPUT VOLTAGE (V) 2 3 VS = 5V 4 3 VS = 3V 2 1 1 0 0 0.01 2050 G03 RL TO GND 4 VS = 3V 1M 100k 5 5 4 1k 10k FREQUENCY (Hz) Output Swing vs Load Resistance 5V Supply 6 2 1 0 -1 -2 -3 -4 2 10 8 6 4 LOAD RESISTANCE (k) 0.1 1 OUTPUT CURRENT (mA) Output Swing vs Output Current 5V Supply GAIN (dB) 0 -1 -2 120 40 GAIN 140 20 160 0 -3 -20 -4 0.1 1.0 OUTPUT CURRENT (mA) 10 2050 G07 VS = 3V OR 5V CL = 35pF RL = 10k -40 100 1k 10k 100k FREQUENCY (Hz) 10 2050 G06 10k PHASE (DEG) 1 6 8 4 LOAD RESISTANCE (k) 100 PHASE 60 2 -5 0.01 80 80 3 2 Input Bias Current vs Temperature (LTC2050) 100 RL TO GND 0 2050 G05 Gain/Phase vs Frequency 5 4 -5 10 INPUT BIAS CURRENT (pA) 0 2050 G04 OUTPUT SWING (V) 0 5 Output Swing vs Output Current VS = 5V 3 TA = 25C VCM (V) RL TO GND 5 20 2050 G01 Output Voltage Swing vs Load Resistance +PSRR 60 40 OUTPUT SWING (V) 10 VS = 5V VS = 3V 60 40 1 80 PSRR (dB) CMRR (dB) CMRR (dB) 120 100 100 OUTPUT SWING (V) PSRR vs Frequency 140 1k VS = 5V 100 VS = 3V 10 180 1M 200 10M 2050 G08 1 -50 -25 75 50 0 25 TEMPERATURE (C) 100 125 2050 G09 Rev. E For more information www.analog.com 7 LTC2050/LTC2050HV TYPICAL PERFORMANCE CHARACTERISTICS Input Bias Current vs Temperature (LTC2050HV) Input Bias Current vs Temperature (LTC2050HVMP) 10k VS = 5V VS = 5V INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT (pA) 10k 1k 100 10 1 -50 -25 0 VS = 3V VS = 5V VS = 5V 1k 100 10 1 -50 25 50 75 100 125 150 TEMPERATURE (C) -15 20 55 TEMPERATURE (C) 90 2050 G10 2050 G11 Input Bias Current vs Input Common Mode Voltage (LTC2050HV) 160 60 140 50 INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT MAGNITUDE (pA) Input Bias Current vs Input Common Mode Voltage 120 VS = 5V 100 80 60 VS = 3V 40 40 VS = 5V 30 20 VS = 5V 10 VS = 3V 0 20 0 0 1 2 125 4 3 INPUT COMMON MODE VOLTAGE (V) -10 5 -5 -1 1 3 -3 INPUT COMMON MODE VOLTAGE (V) 2050 G12 5 2050 G13 Transient Response Input Overload Recovery 1.5 OUTPUT (V) 0 0.5/DIV 0 INPUT (V) -0.2 AV = 1 RL = 100k CL = 50pF VS = 5V 8 1s/DIV 2050 G14 AV = -100 RL = 100k CL = 10pF VS = 1.5V 500s/DIV 2050 G15 Rev. E For more information www.analog.com LTC2050/LTC2050HV TYPICAL PERFORMANCE CHARACTERISTICS Sampling Frequency vs Supply Voltage 10 TA = 25C SAMPLING FREQUENCY (kHz) SAMPLING FREQUENCY (kHz) 10 9 8 7 6 5 2.5 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 3.0 5.5 9 8 6 5 -50 -25 6.0 0 25 50 75 100 125 150 TEMPERATURE (C) 2050 G17 2050 G16 Supply Current vs Temperature 1.1 TA = 25C 1.0 SUPPLY CURRENT (mA) 1.0 SUPPLY CURRENT (mA) VS = 5V 7 Supply Current vs Supply Voltage 1.2 0.8 0.6 0.4 0.9 0.8 0.7 0.6 0.2 0 Sampling Frequency vs Temperature 2 4 8 6 SUPPLY VOLTAGE (V) 10 2050 G18 VS = 3V VS = 5V VS = 5V 0.5 -50 -30 -10 10 30 50 70 90 110 130 150 TEMPERATURE (C) 2050 G19 Rev. E For more information www.analog.com 9 LTC2050/LTC2050HV TEST CIRCUITS Electrical Characteristics Test Circuit 100k OUTPUT V+ 10 4 3 5 - LTC2050 + 1 2 RL V- 2050 TC01 DC-10Hz Noise Test Circuit 100k 10 4 3 - LTC2050 + 475k 1 158k 0.1F 316k 475k 0.01F - 0.01F LT1012 + FOR 1Hz NOISE BW INCREASE ALL THE CAPACITORS BY A FACTOR OF 10. 10 TO X-Y RECORDER 2050 TC02 Rev. E For more information www.analog.com LTC2050/LTC2050HV APPLICATIONS INFORMATION Shutdown The LTC2050 includes a shutdown pin in the 6-lead SOT23 and the SO-8 version. When this active low pin is high or allowed to float, the device operates normally. When the shutdown pin is pulled low, the device enters shutdown mode; supply current drops to 3A, all clocking stops, and both inputs and output assume a high impedance state. Clock Feedthrough, Input Bias Current The LTC2050 uses auto-zeroing circuitry to achieve an almost zero DC offset over temperature, common mode voltage, and power supply voltage. The frequency of the clock used for auto-zeroing is typically 7.5kHz. The term clock feedthrough is broadly used to indicate visibility of this clock frequency in the op amp output spectrum. There are typically two types of clock feedthrough in auto zeroed op amps like the LTC2050. The first form of clock feedthrough is caused by the settling of the internal sampling capacitor and is input referred; that is, it is multiplied by the closed loop gain of the op amp. This form of clock feedthrough is independent of the magnitude of the input source resistance or the magnitude of the gain setting resistors. The LTC2050 has a residue clock feedthrough of less then 1VRMS input referred at 7.5kHz. The second form of clock feedthrough is caused by the small amount of charge injection occurring during the sampling and holding of the op amp's input offset voltage. The current spikes are multiplied by the impedance seen at the input terminals of the op amp, appearing at the output multiplied by the closed loop gain of the op amp. To reduce this form of clock feedthrough, use smaller valued gain setting resistors and minimize the source resistance at the input. If the resistance seen at the inputs is less than 10k, this form of clock feedthrough is less than 1VRMS input referred at 7.5kHz, or less than the amount of residue clock feedthrough from the first form described above. Placing a capacitor across the feedback resistor reduces either form of clock feedthrough by limiting the bandwidth of the closed loop gain. Input bias current is defined as the DC current into the input pins of the op amp. The same current spikes that cause the second form of clock feedthrough described above, when averaged, dominate the DC input bias current of the op amp below 70C. At temperatures above 70C, the leakage of the ESD protection diodes on the inputs increases the input bias currents of both inputs in the positive direction, while the current caused by the charge injection stays relatively constant. At elevated temperatures (above 85C) the leakage current begins to dominate and both the negative and positive pin's input bias currents are in the positive direction (into the pins). Input Pins, ESD Sensitivity ESD voltages above 700V on the input pins of the op amp will cause the input bias currents to increase (more DC current into the pins). At these voltages, it is possible to damage the device to a point where the input bias current exceeds the maximums specified in this data sheet. Rev. E For more information www.analog.com 11 LTC2050/LTC2050HV TYPICAL APPLICATIONS Single Supply Thermocouple Amplifier 1k 1% 255k 1% 100 0.068F 5V 5V 2 4 LT1025A K GND R- 5 4 7 - 3 + 5 - 1 LTC2050 + VOUT 10mV/C 2 0.1F TYPE K LT1025 COMPENSATES COLD JUNCTION OVER 0C TO 100C TEMPERATURE RANGE 2050 TA03 Gain of 1001 Single Supply Instrumentation Amplifier 0.1F 10 10k V+ 10k 4 -VIN LTC2050 3 V+ 5 - + 10 1 2 +VIN 4 5 - LTC2050 3 + 1 VOUT 2 OUTPUT DC OFFSET 6mV FOR 0.1% RESISTORS, CMRR = 54dB 2050 TA04 Instrumentation Amplifier with 100V Common Mode Input Voltage 1k 1M V+ + VIN - 1M 4 1M 3 1k - LTC2050HV + V+ 5 2 V- 1 1k 4 3 - 5 LTC2050HV + 1 VOUT 2 V- OUTPUT OFFSET 3mV FOR 0.1% RESISTORS, CMRR = 54dB 12 2050 TA06 Rev. E For more information www.analog.com LTC2050/LTC2050HV TYPICAL APPLICATIONS High Precision 3-Input Mux 1.1k 10k SHDN 4 IN 1 3 AV = 10 1 LTC2050 + 10k OUT SHDN 5 SEL2 10 4 SEL1 5 - - 1 LTC2050 IN 2 3 AV = 1000 + 4 - SHDN IN 3 3 AV = 1 SEL3 5 1 LTC2050 + 2050 TA07 SELECT INPUTS ARE CMOS LOGIC COMPATIBLE Low Side Power Supply Current Sensing 5V 3 4 + 5 - 2 10 TO MEASURED CIRCUIT 1 LTC2050HV 10k OUT 3V/AMP LOAD CURRENT IN MEASURED CIRCUIT, REFERRED TO -5V 3m 0.1F LOAD CURRENT -5V 2050 TA08 Rev. E For more information www.analog.com 13 LTC2050/LTC2050HV PACKAGE DESCRIPTION S5 Package 5-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1635 Rev B) 0.62 MAX 0.95 REF 2.90 BSC (NOTE 4) 1.22 REF 1.4 MIN 3.85 MAX 2.62 REF 2.80 BSC 1.50 - 1.75 (NOTE 4) PIN ONE RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.30 - 0.45 TYP 5 PLCS (NOTE 3) 0.95 BSC 0.80 - 0.90 0.20 BSC DATUM `A' 0.30 - 0.50 REF 0.09 - 0.20 (NOTE 3) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 14 0.01 - 0.10 1.00 MAX 1.90 BSC S5 TSOT-23 0302 REV B Rev. E For more information www.analog.com LTC2050/LTC2050HV PACKAGE DESCRIPTION S6 Package 6-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1636) 0.62 MAX 2.90 BSC (NOTE 4) 0.95 REF 1.22 REF 3.85 MAX 2.62 REF 1.4 MIN 2.80 BSC 1.50 - 1.75 (NOTE 4) PIN ONE ID RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.30 - 0.45 6 PLCS (NOTE 3) 0.95 BSC 0.80 - 0.90 0.20 BSC 0.01 - 0.10 1.00 MAX DATUM `A' 0.30 - 0.50 REF 0.09 - 0.20 (NOTE 3) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 1.90 BSC S6 TSOT-23 0302 Rev. E For more information www.analog.com 15 LTC2050/LTC2050HV PACKAGE DESCRIPTION S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610 Rev G) .050 BSC .189 - .197 (4.801 - 5.004) NOTE 3 .045 .005 8 .245 MIN .160 .005 .010 - .020 x 45 (0.254 - 0.508) NOTE: 1. DIMENSIONS IN .053 - .069 (1.346 - 1.752) 0- 8 TYP .014 - .019 (0.355 - 0.483) TYP INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) 4. PIN 1 CAN BE BEVEL EDGE OR A DIMPLE 16 5 .150 - .157 (3.810 - 3.988) NOTE 3 1 RECOMMENDED SOLDER PAD LAYOUT .016 - .050 (0.406 - 1.270) 6 .228 - .244 (5.791 - 6.197) .030 .005 TYP .008 - .010 (0.203 - 0.254) 7 2 3 4 .004 - .010 (0.101 - 0.254) .050 (1.270) BSC SO8 REV G 0212 Rev. E For more information www.analog.com LTC2050/LTC2050HV REVISION HISTORY (Revision history begins at Rev D) REV DATE DESCRIPTION PAGE NUMBER D 08/17 Updated TJMAX 2 E 11/18 Added MP option (higher temperature version) 1, 2, 4-6, 7-8 Rev. E 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 For is granted implication or otherwise under any patent or patent rights of Analog Devices. more by information www.analog.com 17 LTC2050/LTC2050HV TYPICAL APPLICATION Ground Referred Precision Current Sources LT1034 0 IOUT 4mA (V-) + 1.5V VOUT - 1V V+ 10k 4 3 + VOUT - 1.235V IOUT = ------ RSET 5 - LTC2050 + 1 3 2 RSET 10k 4 1.235V IOUT = ------ RSET + 0 IOUT 4mA 0.2V VOUT (V+) - 1.5V + RSET 5 LTC2050 - 1 2 V- VOUT - LT1034 2050 TA05 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LTC1049 Low Power Zero-Drift Op Amp Low Supply Current 200A LTC1050 Precision Zero-Drift Op Amp Single Supply Operation 4.75V to 16V, Noise Tested and Guaranteed LTC1051/LTC1053 Precision Zero-Drift Op Amp Dual/Quad LTC1150 15V Zero-Drift Op Amp High Voltage Operation 18V LTC1152 Rail-to-Rail Input and Output Zero-Drift Op Amp Single Zero-Drift Op Amp with Rail-to-Rail Input and Output and Shutdown LT 1677 Low Noise Rail-to-Rail Input and Output Precision Op Amp VOS = 90V, VS = 2.7V to 44V LT1884/LT1885 Rail-to-Rail Output Precision Op Amp VOS = 50V, IB = 400pA, VS = 2.7V to 40V LTC2051 Dual Zero-Drift Op Amp Dual Version of the LTC2050 in MS8 Package (R) 18 Rev. E 11/18 For more information www.analog.com www.analog.com ANALOG DEVICES, INC. 1999-2018