Chopper-Stabilized Operational Amplifier (CSOA™)

DESCRIPTION
The LTC1052 and LTC7652 are low noise zero-drift op amps manufactured using Linear Technology’s enhanced LTCMOSTM silicon gate process. Chopper-stabilization constantly corrects offset voltage errors. Both initial offset and  changes in the offset due to time, temperature and common mode voltage are corrected. This, coupled with picoampere input currents, gives these amplifiers unmatched performance.

FEATURES
■ Guaranteed Max Offset: 5µV
■ Guaranteed Max Offset Drift: 0.05µV/°C
■ Typ Offset Drift: 0.01µV/°C
■ Excellent Long Term Stability: 100nV/√Month
■ Guaranteed Max Input Bias Current: 30pA
■ Over Operating Temperature Range:
    Guaranteed Min Gain: 120dB
    Guaranteed Min CMRR: 120dB
    Guaranteed Min PSRR: 120dB
■ Single Supply Operation: 4.75V to 16V (Input Voltage Range Extends to Ground)
■ External Capacitors can be Returned to V– with No Noise Degradation

APPLICATIONS
■ Thermocouple Amplifiers
■ Strain Gauge Amplifiers
■ Low Level Signal Processing
■ Medical Instrumentation