The LTC1050CN8#PBF is a precision zero-drift Operational Amplifier with internal capacitors. The unique achievement is that it integrates on-chip the two sample-and-hold capacitors usually required externally by other chopper amplifiers. Further, the LTC1050 offers better combined overall DC and AC performance than is available from other chopper stabilized amplifiers with or without internal sample-and-hold capacitors. The LTC1050 has an offset voltage of 0.5µV, drift of 0.01µV/°C, DC to 10Hz, input noise voltage of 1.6µVP-P and a typical voltage gain of 160dB. The slew rate of 4V/µs and a gain bandwidth product of 2.5MHz are achieved with only 1mA of supply current. Overload recovery times from positive and negative saturation conditions are 1.5ms and 3ms respectively, which represents an improvement of about 100 times over chopper amplifiers using external capacitors. Pin 5 is an optional external clock input, useful for synchronization purposes.
● No external components required
● Noise tested and guaranteed
● Low aliasing errors
● 5µV Maximum offset voltage
● 0.5µV/°C Maximum offset voltage drift
● Low noise (1.6µVp-p, 0.1 to 10Hz)
● 130dB Minimum voltage gain
● 125dB Minimum PSRR
● 120dB Minimum CMRR
● Low supply current (1mA)
● Single-supply operation
● Input common-mode range includes ground
● Output swings to ground
● 3ms Typical overload recovery time
