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LTC2057HV Datasheet(PDF) 1 Page - Linear Technology |
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LTC2057HV Datasheet(HTML) 1 Page - Linear Technology |
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1 / 32 page  LTC2057/LTC2057HV 1 2057f For more information www.linear.com/LTC2057 Typical applicaTion FeaTures DescripTion High Voltage, Low Noise Zero-Drift Operational Amplifier The LTC®2057 is a high voltage, low noise, zero-drift op- erational amplifier that offers precision DC performance over a wide supply range of 4.75V to 36V or 4.75V to 60V for the LTC2057HV. Offset voltage and 1/f noise are suppressed, allowing this amplifier to achieve a maximum offset voltage of 4μV and a DC to 10Hz input noise volt- age of 200nVP-P (typ). The LTC2057’s self-calibrating circuitryresultsinlowoffsetvoltagedriftwithtemperature, 0.015μV/°C (max), and zero-drift over time. The amplifier also features an excellent power supply rejection ratio (PSRR) of 160dB and a common mode rejection ratio (CMRR) of 150dB (typ). The LTC2057 provides rail-to-rail output swing and an input common mode range that includes the V– rail (V– – 0.1V to V+ – 1.5V). In addition to low offset and noise, this amplifier features a 1.5MHz (typ) gain-bandwidth product and a 0.45V/μs (typ) slew rate. Wide supply range, combined with low noise, low offset, and excellent PSRR and CMRR make the LTC2057 and LTC2057HV well suited for high dynamic-range test, measurement, and instrumentation systems. L , LT, LTC, LTM, Linear Technology, Over-The-Top, and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Input Offset Voltage vs Supply Voltage applicaTions n Supply Voltage Range n 4.75V to 36V (LTC2057) n 4.75V to 60V (LTC2057HV) n Offset Voltage: 4μV (Maximum) n Offset Voltage Drift: 0.015μV/°C (Maximum, –40°C to 125°C) n Input Noise Voltage n 200nVP-P, DC to 10Hz (Typ) n 11nV/√Hz, 1kHz (Typ) n Input Common Mode Range: V– – 0.1V to V+ – 1.5V n Rail-to-Rail Output n Unity Gain Stable n Gain Bandwidth Product: 1.5MHz (Typ) n Slew Rate: 0.45V/μs (Typ) n AVOL: 150dB (Typ) n PSRR: 160dB (Typ) n CMRR: 150dB (Typ) n Shutdown Mode n High Resolution Data Acquisition n Reference Buffering n Test and Measurement n Electronic Scales n Thermocouple Amplifiers n Strain Gauges n Low-Side Current Sense n Automotive Monitors and Control Wide Input Range Precision Gain-of-100 Instrumentation Amplifier 30V –30V –IN +IN 30V 11.5k 11.5k –30V 2057 TA01a LTC2057HV LTC2057HV M9 M3 M1 INPUT CM RANGE = ±28V WITH 4V OF OUTPUT SWING CMRR = 130dB (TYP), INPUT OFFSET VOLTAGE = 1µV (TYP) + – – + 8 9 10 P1 P3 P9 LT1991A 18V –18V REF OUT 6 5 4 7 VOUT VCC VEE 232Ω 1 2 3 VS (V) 0 –5 –4 –3 –2 –1 0 1 5 3 4 2 10 20 30 40 50 5 15 25 35 45 55 65 60 2057 TA01b 5 TYPICAL UNITS VCM = VS/2 TA = 25°C |
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