Ultra-low-power dual op-amp for battery and sensor conditioning
The STMicroelectronics OA2NP34S is a dual CMOS operational amplifier with rail-to-rail output, designed for applications where supply current is the primary constraint. Each channel draws 650 nA typical, yet delivers a gain-bandwidth product of 9 kHz and an 11 mA output drive per channel.
It is suited for DC or quasi-DC signals: thermocouple conditioning, strain-gauge bridges, photodiode current sensing, and battery voltage monitoring. It cannot track audio or control-loop bandwidths — the TSV912IDT (8 MHz, 4.5 V/µs) is the correct choice for those.