LTC2050/LTC2050HV Zero-Drift Operational Amplifiers in SOT-23 U FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO The LTC®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 800µA and the versions in the 6-lead SOT-23 and SO-8 packages offer power shutdown (active low). SOT-23 Package Maximum Offset Voltage of 3µV Maximum Offset Voltage Drift of 30nV/°C Noise: 1.5µVP-P (0.01Hz to 10Hz Typ) Voltage Gain: 140dB (Typ) PSRR: 130dB (Typ) CMRR: 130dB (Typ) Supply Current: 0.8mA (Typ) Supply Operation: 2.7V to 6V (LTC2050) 2.7V to ±5.5V (LTC2050HV) Extended Common Mode Input Range Output Swings Rail-to-Rail Input Overload Recovery Time: 2ms (Typ) The LTC2050, despite its miniature size, features uncompromising DC performance. The typical input offset voltage and offset drift are 0.5µV 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. U APPLICATIO S ■ ■ ■ ■ ■ ■ Thermocouple Amplifiers Electronic Scales Medical Instrumentation Strain Gauge Amplifiers High Resolution Data Acquisition DC Accurate RC Active Filters Low Side Current Sense , LTC and LT are registered trademarks of Linear Technology Corporation. U ■ 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 2kΩ to both supply rails. The openloop gain is typically 140dB. The LTC2050 also features a 1.5µVP-P DC to 10Hz noise and a 3MHz gain bandwidth product. TYPICAL APPLICATION Input Referred Noise 0.1Hz to 10Hz Differential Bridge Amplifier 2 5V 5V 50Ω GAIN TRIM 0.1µF 0.1µF 1 µV 18.2k 350Ω STRAIN GAUGE 4 – LTC2050 3 0.1µF + 0 5 1 AV = 100 –1 2 18.2k –2 2050 TA01 – 5V 0 2 4 6 TIME (SEC) 8 10 1 LTC2050/LTC2050HV W W W AXI U U ABSOLUTE RATI GS (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 ............... – 40°C to 85°C Specified Temperature Range (Note 3) .. – 40°C to 85°C Storage Temperature Range ................ – 65°C to 150°C Lead Temperature (Soldering, 10 sec)................. 300°C W U U PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW OUT 1 TOP VIEW 5 V+ OUT 1 V– 2 +IN 3 V– 2 +IN 3 4 –IN SHDN 1 8 NC 6 V+ –IN 2 7 V+ 5 SHDN +IN 3 6 OUT V– 4 5 NC 4 –IN S5 PACKAGE 5-LEAD PLASTIC SOT-23 S6 PACKAGE 6-LEAD PLASTIC SOT-23 TJMAX = 125°C, θJA = 250°CW TJMAX = 125°C, θJA = 230°CW S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 125°C, θJA = 190°CW ORDER PART NUMBER S5 PART MARKING ORDER PART NUMBER S6 PART MARKING ORDER PART NUMBER LTC2050CS5 LTC2050HVCS5 LTC2050HVIS5 LTIN LTNY LTNZ LTC2050CS6 LTC2050HVCS6 LTC2050HVIS6 LTIP LTPA LTPB LTC2050CS8 LTC2050IS8 LTC2050HVCS8 LTC2050HVIS8 S8 PART MARKING 2050 2050I 2050HV 050HVI Consult factory for Military grade parts. ELECTRICAL CHARACTERISTICS (LTC2050, LTC2050HV) The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V unless otherwise noted. (Note 3) PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) MIN MAX ±3 ±0.03 ● Long-Term Offset Drift Input Bias Current TYP ±0.5 50 pA pA ±1 ● ±50 ±100 pA pA ● ±150 ±200 pA pA ● ±100 ±150 pA pA LTC2050 LTC2050HV RS = 100Ω, 0.01Hz to 10Hz Common Mode Rejection Ratio VCM = GND to (V + – 1.3) VCM = GND to (V + – 1.3) Power Supply Rejection Ratio 2 nV/√mo ±75 ±300 LTC2050HV Input Noise Voltage µV µV/°C ±20 LTC2050 ● Input Offset Current UNITS 1.5 µVP-P ● 115 110 130 130 dB dB ● 120 115 130 130 dB dB VS = 2.7V to 6V LTC2050/LTC2050HV ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V unless otherwise noted. (Note 3) PARAMETER CONDITIONS MIN TYP Large-Signal Voltage Gain RL = 10k ● 120 115 140 140 dB dB 2.85 2.95 2.94 2.98 V V Output Voltage Swing High RL = 2k to GND RL = 10k to GND ● ● Output Voltage Swing Low RL = 2k to GND RL = 10k to GND ● ● 1 1 Slew Rate 0.75 ● ● ● Shutdown Pin Input High Voltage (VIH) ● VSHDN = GND mA µA V – + 0.5 V –3 µA V – 0.5 Internal Sampling Frequency mV mV MHz 1.1 10 V + – 0.5 ● UNITS V/µs 3 VSHDN = V IH, No Load VSHDN = V IL Shutdown Pin Input Low Voltage (VIL) Shutdown Pin Input Current 10 10 2 Gain Bandwidth Product Supply Current MAX 7.5 kHz (LTC2050, LTC2050HV) VS = 5V unless otherwise noted. (Note 3) PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) MIN ±0.5 50 ±7 ● ±50 ±150 pA pA ● ±300 ±400 pA pA ● ±100 ±200 pA pA LTC2050HV RS = 100Ω, 0.01Hz to 10Hz Common Mode Rejection Ratio VCM = GND to (V + – 1.3) VCM = GND to (V + – 1.3) Large-Signal Voltage Gain nV/√mo pA pA LTC2050 Input Noise Voltage µV µV/°C ±150 ±300 LTC2050HV Power Supply Rejection Ratio ±3 UNITS ±75 LTC2050 ● Input Offset Current MAX ±0.03 ● Long-Term Offset Drift Input Bias Current TYP 1.5 µVP-P ● 120 115 130 130 dB dB ● 120 115 130 130 dB dB ● 125 120 140 140 dB dB 4.85 4.95 4.94 4.98 V V VS = 2.7V to 6V RL = 10k Output Voltage Swing High RL = 2k to GND RL = 10k to GND ● ● Output Voltage Swing Low RL = 2k to GND RL = 10k to GND ● ● 1 1 10 10 mV mV Slew Rate 2 V/µs Gain Bandwidth Product 3 MHz Supply Current VSHDN = V IH, No Load VSHDN = V IL Shutdown Pin Input Low Voltage (VIL) Internal Sampling Frequency ● VSHDN = GND ● 1.2 15 V – + 0.5 ● Shutdown Pin Input High Voltage (VIH) Shutdown Pin Input Current 0.8 ● ● V+ – 0.5 mA µA V V – 0.5 7.5 –7 µA kHz 3 LTC2050/LTC2050HV ELECTRICAL CHARACTERISTICS (LTC2050HV) The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = ±5V unless otherwise noted. (Note 3) PARAMETER CONDITIONS Input Offset Voltage (Note 2) Average Input Offset Drift (Note 2) MIN TYP MAX ±0.5 ±3 ±0.03 ● Long-Term Offset Drift 50 Input Bias Current ±25 RS = 100Ω, 0.01Hz to 10Hz Common Mode Rejection Ratio VCM = V – to (V + – 1.3) VCM = V – to (V + – 1.3) Power Supply Rejection Ratio Large-Signal Voltage Gain Maximum Output Voltage Swing pA pA ● ±250 ±500 pA pA 1.5 µVP-P ● 120 115 130 130 dB dB ● 120 115 130 130 dB dB ● 125 120 140 140 dB dB ● ● ±4.75 ±4.90 ±4.94 ±4.98 V V RL = 10k Slew Rate 2 Gain Bandwidth Product 3 Supply Current VSHDN = V IH, No Load VSHDN = V IL Shutdown Pin Input Low Voltage (VIL) Shutdown Pin Input Current ● VSHDN = V – Internal Sampling Frequency Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: These parameters are guaranteed by design. Thermocouple effects preclude measurements of these voltage levels during automated testing. 4 1 ● ● ● V/µs MHz 1.5 25 mA µA V – + 0.5 ● Shutdown Pin Input High Voltage (VIH) nV/√mo ● VS = 2.7V to 11V RL = 2k to GND RL = 10k to GND µV µV/°C ±125 ±300 Input Offset Current Input Noise Voltage UNITS V+ V – 0.5 V –3 7.5 – 20 µA kHz Note 3: The LTC2050C, LTC2050HVC are guaranteed to meet specified performance from 0°C to 70°C and are designed, characterized and expected to meet these extended temperature limits, but are not tested at – 40°C and 85°C. The LTC2050I, LTC2050HVI are guaranteed to meet specified performance from –40°C to 85°C. LTC2050/LTC2050HV U W TYPICAL PERFOR A CE CHARACTERISTICS Common Mode Rejection Ratio vs Frequency DC CMRR vs Common Mode Input Voltage 140 VS = 3V OR 5V VCM = 0.5VP-P 120 140 120 100 –PSRR 100 80 60 80 80 PSRR (dB) CMRR (dB) 100 CMRR (dB) PSRR vs Frequency 120 VS = 5V VS = 3V 60 +PSRR 60 40 40 40 20 20 20 TA = 25°C 0 0 10 1 100 1k FREQUENCY (Hz) 10k 0 0 100k 1 2 3 4 6 5 VS = 3V 2 3 VS = 5V OUTPUT SWING (V) OUTPUT VOLTAGE (V) 3 RL TO GND 4 5 4 1M Output Swing vs Load Resistance ±5V Supply Output Swing vs Output Current VS = 5V 1k 10k 100k FREQUENCY (Hz) LTC2050 • G14 RL TO GND 5 100 2050 G02 Output Voltage Swing vs Load Resistance 6 10 VCM (V) 2050 G01 OUTPUT SWING (V) 5 4 3 VS = 3V 2 2 1 0 –1 –2 –3 1 1 0 0 0.01 –4 2 10 8 6 4 LOAD RESISTANCE (kΩ) 0.1 1 OUTPUT CURRENT (mA) Output Swing vs Output Current ±5V Supply 10k RL TO GND 80 100 PHASE 1k 60 2 GAIN (dB) 1 0 –1 –2 120 40 GAIN 140 20 160 0 –3 –20 –4 0.1 1.0 OUTPUT CURRENT (mA) 10 2050 G17 PHASE (DEG) OUTPUT SWING (V) 10 Bias Current vs Temperature 80 100 3 –5 0.01 6 8 4 LOAD RESISTANCE (kΩ) 2050 G16 Gain/Phase vs Frequency 5 2 0 2050 G04 2050 G03 4 –5 10 BIAS CURRENT (pA) 0 VS = 5V 100 VS = 3V 10 VS = 3V OR 5V CL = 35pF RL = 10kΩ –40 100 1k 10k 100k FREQUENCY (Hz) 180 1M 200 10M 2050 G05 1 –50 –25 75 50 0 25 TEMPERATURE (°C) 100 125 2050 G06 5 LTC2050/LTC2050HV U W TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current vs Input Common Mode Voltage (LTC2050HV) 160 60 140 50 120 VS = 5V 100 80 60 VS = 3V 40 40 Transient Response VS = ±5V 30 0.5V/DIV INPUT BIAS CURRENT (pA) INPUT BIAS CURRENT MAGNITUDE (pA) Input Bias Current vs Input Common Mode Voltage 20 VS = 5V 10 VS = 3V 0 20 –10 0 0 1 2 4 3 INPUT COMMON MODE VOLTAGE (V) 5 –5 –1 1 3 –3 INPUT COMMON MODE VOLTAGE (V) AV = 1 RL = 100k CL = 50pF VS = 5V 5 2050 G15 2050 G13 Sampling Frequency vs Supply Voltage Input Overload Recovery 1µs/DIV 2050 G07 Sampling Frequency vs Temperature 10 10 OUTPUT (V) SAMPLING FREQUENCY (kHz) 1.5 INPUT (V) 0 0 SAMPLING FREQUENCY (kHz) TA = 25°C 9 8 7 6 9 8 VS = 5V 7 6 –0.2 5 AV = –100 RL = 100k CL = 10pF VS = ±1.5V 2050 G08 500µs/DIV 3.0 2.5 3.5 4.0 4.5 5.0 SUPPLY VOLTAGE (V) 5.5 6.0 –25 50 25 0 75 TEMPERATURE (°C) Supply Current vs Supply Voltage Supply Current vs Temperature 1.0 TA = 25°C VS = 5V 0.8 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 1.0 0.8 0.6 0.4 0 VS = 3V 0.6 0.4 0.2 0.2 2 4 8 6 SUPPLY VOLTAGE (V) 10 2050 G11 0 –50 –25 100 125 2050 G10 2050 G09 1.2 6 5 –50 50 0 75 25 TEMPERATURE (°C) 100 125 2050 G12 LTC2050/LTC2050HV TEST CIRCUITS DC-10Hz Noise Test Circuit Electrical Characteristics Test Circuit 100k 100k 475k OUTPUT V+ 10Ω 4 – 10Ω 5 LTC2050 3 + 4 – 1 LTC2050 3 2 0.01µF RL + 1 158k 316k 475k – 0.1µF 0.01µF LT1012 TO X-Y RECORDER + V– 2050 TC01 FOR 1Hz NOISE BW INCREASE ALL THE CAPACITORS BY A FACTOR OF 10. 2050 TC02 U W U U APPLICATIONS INFORMATION Shutdown The LTC2050 includes a shutdown pin in the 6-lead SOT-23 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 3µA, all clocking stops, and both inputs and output assume a high impedance state. 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 1µVRMS input referred at 7.5kHz. 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 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 1µVRMS input referred at 7.5kHz, or less than the amount of residue clock feedthrough from the first form described above. 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 Placing a capacitor across the feedback resistor reduces either form of clock feedthrough by limiting the bandwidth of the closed loop gain. Clock Feedthrough, Input Bias Current 7 LTC2050/LTC2050HV U W U U APPLICATIONS INFORMATION 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 70°C. leakage current begins to dominate and both the negative and positive pin’s input bias currents are in the positive direction (into the pins). At temperatures above 70°C, 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 85°C) the 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. Input Pins, ESD Sensitivity U TYPICAL APPLICATIONS Single Supply Thermocouple Amplifier 1k 1% 255k 1% 100Ω 0.068µF 5V 5V 2 4 LT1025A K GND 4 R– 5 5 – 1 LTC2050 3 7 – + + VOUT 10mV/°C 2 0.1µF TYPE K LT1025 COMPENSATES COLD JUNCTION OVER 0°C TO 100°C TEMPERATURE RANGE 2050 TA03 Gain of 1001 Single Supply Instrumentation Amplifier 0.1µF 10Ω 10k V+ 10k 4 – LTC2050 –VIN 3 + V+ 5 1 10Ω +VIN 8 – 5 LTC2050 2 OUTPUT DC OFFSET ≤ 6mV FOR 0.1% RESISTORS, CMRR = 54dB 4 3 + 1 VOUT 2 2050 TA04 LTC2050/LTC2050HV U TYPICAL APPLICATIONS Instrumentation Amplifier with 100V Common Mode Input Voltage 1k 1M V+ 1M 4 + VIN – V+ 5 1 LTC2050HV 1M 3 – 1k + 1k 4 – 5 LTC2050HV 2 3 + V– 1 VOUT 2 V– OUTPUT OFFSET ≤ 3mV FOR 0.1% RESISTORS, CMRR = 54dB 2050 TA06 High Precision Three-Input Mux 1.1k 10k SHDN 4 – LTC2050 IN 1 3 AV = 10 – 10k OUT SHDN 5 SEL2 LTC2050 IN 2 3 AV = 1000 1 + 10Ω 4 SEL1 5 1 + SHDN 4 – LTC2050 IN 3 3 AV = 1 SEL3 5 1 + 2050 TA07 SELECT INPUTS ARE CMOS LOGIC CAMPATIBLE. 9 LTC2050/LTC2050HV U TYPICAL APPLICATIONS Low-Side Power Supply Current Sensing 5V 3 + 5 1 LTC2050HV 4 – 2 10Ω TO MEASURED CIRCUIT OUT 3V/AMP LOAD CURRENT IN MEASURED CIRCUIT, REFERRED TO –5V 10k 3mΩ 0.1µF LOAD CURRENT – 5V U PACKAGE DESCRIPTION 2050 TA08 Dimensions in inches (millimeters) unless otherwise noted. S5 Package 5-Lead Plastic SOT-23 (LTC DWG # 05-08-1633) 2.60 – 3.00 (0.102 – 0.118) 1.50 – 1.75 (0.059 – 0.069) 0.35 – 0.55 (0.014 – 0.022) 0.09 – 0.20 (0.004 – 0.008) (NOTE 2) 0.00 – 0.15 (0.00 – 0.006) 0.35 – 0.50 0.90 – 1.30 (0.014 – 0.020) (0.035 – 0.051) FIVE PLACES (NOTE 2) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DIMENSIONS ARE INCLUSIVE OF PLATING 3. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 4. MOLD FLASH SHALL NOT EXCEED 0.254mm 5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ) 10 0.90 – 1.45 (0.035 – 0.057) 2.80 – 3.00 (0.110 – 0.118) (NOTE 3) 1.90 (0.074) REF 0.95 (0.037) REF S5 SOT-23 0599 LTC2050/LTC2050HV U PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted. S6 Package 6-Lead Plastic SOT-23 (LTC DWG # 05-08-1634) 2.6 – 3.0 (0.110 – 0.118) 1.50 – 1.75 (0.059 – 0.069) 0.35 – 0.55 (0.014 – 0.022) 0.00 – 0.15 (0.00 – 0.006) 0.09 – 0.20 (0.004 – 0.008) (NOTE 2) 0.90 – 1.45 (0.035 – 0.057) 2.80 – 3.00 (0.110 – 0.118) (NOTE 3) 0.35 – 0.50 0.90 – 1.30 (0.014 – 0.020) (0.035 – 0.051) SIX PLACES (NOTE 2) 0.95 (0.037) REF 1.90 (0.074) REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DIMENSIONS ARE INCLUSIVE OF PLATING 3. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 4. MOLD FLASH SHALL NOT EXCEED 0.254mm 5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ) S6 SOT-23 0898 S8 Package 8-Lead Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) 0.189 – 0.197* (4.801 – 5.004) 0.010 – 0.020 × 45° (0.254 – 0.508) 0.053 – 0.069 (1.346 – 1.752) 0.008 – 0.010 (0.203 – 0.254) 0°– 8° TYP 0.016 – 0.050 (0.406 – 1.270) 0.014 – 0.019 (0.355 – 0.483) TYP *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 8 7 6 5 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) BSC 0.150 – 0.157** (3.810 – 3.988) 0.228 – 0.244 (5.791 – 6.197) SO8 1298 1 2 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 3 4 11 LTC2050/LTC2050HV U TYPICAL APPLICATIONS Ground Referred Precision Current Sources LT1034 0 ≤ IOUT ≤ 4mA (V –) + 1.5V ≤ VOUT ≤ – 1V + VOUT – 1.235V IOUT = ——— RSET V+ 10k 4 5 – LTC2050 3 + 1 3 RSET + 10k 1.235V IOUT = ——— RSET LTC2050 4 – 0 ≤ IOUT ≤ 4mA 0.2V ≤ VOUT ≤ (V+) – 1.5V 1 2 V VOUT – RSET 5 + 2 – LT1034 2050 TA05 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LTC1049 Low Power Zero-Drift Op Amp Low Supply Current 200µA LTC1050 Precision Zero-Drift Op Amp LTC1051/LTC1053 Precision Zero-Drift Op Amp ±15V Zero-Drift Op Amp LTC1150 Single Supply Operation 4.75V to 16V, Noise Tested and Guaranteed Dual/Quad 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 LT1677 Low Noise Rail-to-Rail Input and Ouptput Precision Op Amp VOS = 90µV, VS = 2.7V to 44V LT1884/LT1885 Rail-to-Rail Output Precision Op Amp VOS = 50µV, IB = 400pA, VS = 2.7V to 40V LTC2051 Dual Zero-Drift Op Amp Dual Version of the LTC2050 in MS8 Package 12 Linear Technology Corporation 2050f LT/TP 1000 4K • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com LINEAR TECHNOLOGY CORPORATION