LT1002 is a dual-channel, high-precision operational amplifier suitable for thermocouple amplifiers, strain gauge amplifiers, low-level signal processing, medical instrumentation, etc. It features low offset voltage, low drift, high common mode rejection ratio, and high channel separation.
The document describes the LT1002, a dual matched precision operational amplifier designed to combine excellent individual performance with tight matching and temperature tracking between amplifiers. It is optimized for applications requiring high precision, such as thermocouple amplifiers, strain gauge amplifiers, low-level signal processing, and medical instrumentation.
The datasheet provides absolute maximum ratings, detailed electrical characteristics for various grades (LT1002A, LT1002M, LT1002C), matching characteristics between the two channels, and typical performance graphs including offset voltage distribution, noise spectrum, and long-term stability.
| Input Offset Voltage (LT1002A) | 60uV max |
|---|---|
| Input Offset Voltage Match (LT1002A) | 40uV max |
| Input Noise Voltage Density | 9.6 nV/√Hz (typ) |
| Common Mode Rejection Ratio | 110dB min |
| Channel Separation | 132dB min (LT1002A) |
| Operating Temperature Range (Grade A) | -55°C to +125°C |
The device is suitable for thermocouple amplifiers, strain gauge amplifiers, low level signal processing, medical instrumentation, and precision dual limit threshold detection.
The guaranteed maximum input offset voltage for the LT1002A is 60uV.
The power dissipation is nearly halved compared to the most popular precision duals without adversely affecting noise or speed performance.