Quad zero-drift op-amp for automotive sensor conditioning
Its chopper-stabilized architecture delivers a 1 µV input offset voltage and 0.19 V/µs slew rate across a 1.8 V to 5.5 V supply range, with rail-to-rail output swing. Each of the four channels draws 31 µA supply current, keeping the total quiescent load under 125 µA. The 400 kHz gain-bandwidth product suits low-frequency signal paths — think pressure-sensor bridge amplifiers, thermocouple cold-junction compensation, and battery-current shunt monitors in engine-control or body-control modules.
400 kHz GBW — where it fits
At 400 kHz GBW, this op-amp is deliberately a low-frequency part. It handles DC-accurate sensor conditioning, active filtering below 40 kHz, and slow control loops — not audio or high-speed ADC drivers. Compare it to the TSZ182IDT (3 MHz GBW, 4.7 V/µs slew rate) if you need wider bandwidth; the TSZ124IQ4T trades speed for lower quiescent current and a quad-channel count in a small 3x3 mm package.
Sourcing and supply
The TSZ124IQ4T is an active STMicroelectronics line, available through independent distribution. We source and quote it to order against an RFQ.