What this zero-drift op-amp does on the board
The Microchip MCP6V61T-E/OT is a single-channel zero-drift operational amplifier in a SOT-23-5 package, designed for applications that demand low offset and minimal drift over temperature and time. Its auto-zero architecture delivers a typical input offset voltage of 8 µV and a supply current of 80 µA, making it a fit for precision sensor conditioning, battery-monitoring circuits, and loop-powered transmitters where every microamp counts.
1 MHz gain bandwidth — what it buys you
The bandwidth supports closed-loop gains up to 100 at 10 kHz, but if your application needs to pass a 100 kHz signal, the gain will be limited to roughly 10. For higher-speed zero-drift needs, the MCP6V91UT-E/OT offers 10 MHz GBWP and 9.5 V/µs slew rate, though at a higher supply current of 1.1 mA.
The SOT-23-5 footprint is shared with many general-purpose op-amps, which simplifies board-level swaps if a different gain-bandwidth or supply current is needed later.