Low-power general-purpose op-amp for battery-operated and sensor-front-end designs
It draws just 20 µA of quiescent current while delivering a 500 kHz gain-bandwidth product and a 0.23 V/µs slew rate — enough bandwidth for low-frequency sensor conditioning, battery monitoring, and portable instrumentation. Input bias current is 3 pA, so it can interface directly with high-impedance sources like photodiodes or pH electrodes without an external buffer.
At 500 kHz GBP, this part is not for video or high-speed data acquisition. It is sized for signals below about 50 kHz — think thermocouple amplifiers, pressure-sensor bridges, battery fuel-gauge current-sense circuits, and audio-frequency active filters. The 0.23 V/µs slew rate limits full-power bandwidth to roughly 36 kHz at 1 V output swing, so plan for that if you need to reproduce fast edges. The trade-off is the 20 µA supply: a 3.5 MHz part like the TLV9351IDCKR would burn 600 µA, which kills battery life in an always-on sensor node.
The rail-to-rail output lets you swing within a few millivolts of each rail, which matters when your ADC reference is the supply itself. Input offset is 550 µV typical — adequate for 8- to 10-bit systems but not precision metrology; if you need sub-100 µV offset, step up to a zero-drift amplifier.