Datasheet LT1024 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Dual, Matched Picoampere, Microvolt Input, Low Noise Op Amp |
| 页数 / 页 | 12 / 1 — FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. Two Op Amp … |
| 文件格式/大小 | PDF / 179 Kb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTIO. APPLICATIO S. TYPICAL APPLICATIO. Two Op Amp Instrumentation Amplifier. Input Bias Current vs Temperature
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LT1024 Dual, Matched Picoampere, Microvolt Input, Low Noise Op Amp
U FEATURES DESCRIPTIO
■ Guaranteed Offset Voltage: 50µV Max The LT ®1024 dual, matched internally compensated ■ Guaranteed Bias Current: universal precision operational amplifier can be used in 25°C: 120pA Max practically all precision applications requiring multiple op – 55°C to 125°C: 700pA Max amps. The LT1024 combines picoampere bias currents ■ Guaranteed Drift: 1.5µV/°C Max (which are maintained over the full –55°C to 125°C ■ Low Noise, 0.1Hz to 10Hz: 0.5µVP-P temperature range), microvolt offset voltage (and low drift ■ Guaranteed Supply Current: 600µA Max with time and temperature), low voltage and current ■ Guaranteed CMRR: 112dB Min noise and low power dissipation. Extremely high ■ Guaranteed PSRR: 112dB Min common mode and power supply rejection ratios, ■ Guaranteed Voltage Gain with 5mA Load Current practically immeasurable warm-up drift, and the ability to ■ Guaranteed Matching Characteristics deliver 5mA load current with a voltage gain of a million, round out the LT1024’s superb precision specifications.
U
Tight matching is guaranteed on offset voltage,
APPLICATIO S
noninverting bias currents and common mode and power ■ Strain Gauge Signal Conditioner supply rejections. ■ Dual Limit Precision Threshold Detection The all-around excellence of the LT1024 eliminates the ■ Charge Integrators necessity of the time-consuming error analysis procedure ■ Wide Dynamic Range Logarithmic Amplifiers of precision system design in many dual applications; the ■ Light Meters LT1024 can be stocked as the universal dual op amp in the ■ Low Frequency Active Filters 14-pin DIP configuration. ■ Standard Cell Buffers ■ Thermocouple Amplifiers For a single op amp with similar specifications, see the , LTC and LT are registered trademarks of Linear Technology Corporation. LT1012 data sheet; for a single supply dual precision op amp in the 8-pin configuration, see the LT1013 data sheet.
U TYPICAL APPLICATIO Two Op Amp Instrumentation Amplifier Input Bias Current vs Temperature
100 R5 R4 † 2.2k 100k R1* R2 50 100k 10k UNDERCANCELLED UNIT 3 0 – R3 OVERCANCELLED UNIT 13 10k 10 1/2 LT1024 – 4 6 –50 – + 1/2 LT1024 OUTPUT INPUTS 11 + INPUT BIAS CURRENT (pA) –100 + TYPICAL PERFORMANCE: –150 OFFSET VOLTAGE = 20µV R4 R2 R3 R2 + R3 –50 –25 0 25 50 75 100 125 GAIN = 1 + 1 ( + )+ ~ 100 ~ BIAS CURRENT = ±30pA R3 2 R1 R4 R5 TEMPERATURE (°C) OFFSET CURRENT = 30pA LTC1024 • TA02 * TRIM FOR COMMON-MODE REJECTION † TRIM FOR GAIN LT1024 • TA01 1024fa 1
U FEATURES DESCRIPTIO
■ Guaranteed Offset Voltage: 50µV Max The LT ®1024 dual, matched internally compensated ■ Guaranteed Bias Current: universal precision operational amplifier can be used in 25°C: 120pA Max practically all precision applications requiring multiple op – 55°C to 125°C: 700pA Max amps. The LT1024 combines picoampere bias currents ■ Guaranteed Drift: 1.5µV/°C Max (which are maintained over the full –55°C to 125°C ■ Low Noise, 0.1Hz to 10Hz: 0.5µVP-P temperature range), microvolt offset voltage (and low drift ■ Guaranteed Supply Current: 600µA Max with time and temperature), low voltage and current ■ Guaranteed CMRR: 112dB Min noise and low power dissipation. Extremely high ■ Guaranteed PSRR: 112dB Min common mode and power supply rejection ratios, ■ Guaranteed Voltage Gain with 5mA Load Current practically immeasurable warm-up drift, and the ability to ■ Guaranteed Matching Characteristics deliver 5mA load current with a voltage gain of a million, round out the LT1024’s superb precision specifications.
U
Tight matching is guaranteed on offset voltage,
APPLICATIO S
noninverting bias currents and common mode and power ■ Strain Gauge Signal Conditioner supply rejections. ■ Dual Limit Precision Threshold Detection The all-around excellence of the LT1024 eliminates the ■ Charge Integrators necessity of the time-consuming error analysis procedure ■ Wide Dynamic Range Logarithmic Amplifiers of precision system design in many dual applications; the ■ Light Meters LT1024 can be stocked as the universal dual op amp in the ■ Low Frequency Active Filters 14-pin DIP configuration. ■ Standard Cell Buffers ■ Thermocouple Amplifiers For a single op amp with similar specifications, see the , LTC and LT are registered trademarks of Linear Technology Corporation. LT1012 data sheet; for a single supply dual precision op amp in the 8-pin configuration, see the LT1013 data sheet.
U TYPICAL APPLICATIO Two Op Amp Instrumentation Amplifier Input Bias Current vs Temperature
100 R5 R4 † 2.2k 100k R1* R2 50 100k 10k UNDERCANCELLED UNIT 3 0 – R3 OVERCANCELLED UNIT 13 10k 10 1/2 LT1024 – 4 6 –50 – + 1/2 LT1024 OUTPUT INPUTS 11 + INPUT BIAS CURRENT (pA) –100 + TYPICAL PERFORMANCE: –150 OFFSET VOLTAGE = 20µV R4 R2 R3 R2 + R3 –50 –25 0 25 50 75 100 125 GAIN = 1 + 1 ( + )+ ~ 100 ~ BIAS CURRENT = ±30pA R3 2 R1 R4 R5 TEMPERATURE (°C) OFFSET CURRENT = 30pA LTC1024 • TA02 * TRIM FOR COMMON-MODE REJECTION † TRIM FOR GAIN LT1024 • TA01 1024fa 1