Precision zero-drift op-amp for industrial sensing
The Microchip MCP6V86UT-E/LTY is a single-channel zero-drift (chopper) operational amplifier from the Zero-Drift series, designed to deliver low offset and drift over temperature without the need for external trimming. It combines a 5 MHz gain-bandwidth product with a 4 V/µs slew rate, making it suitable for precision signal conditioning in sensor front-ends, current-sense amplifiers, and data-acquisition paths where DC accuracy matters. The rail-to-rail output stage maximizes dynamic range on low-voltage supplies, and the 2 pA typical input bias current preserves signal integrity when interfacing with high-impedance sources like photodiodes or pH probes.
Key specs for the BOM decision
The 25 µV maximum input offset voltage is the headline figure that defines this part's precision class — it eliminates the need for offset-nulling potentiometers or software calibration in most DC-coupled applications. The 2 pA bias current means the voltage error from a 10 kΩ source is just 20 nV, negligible even in microvolt-level measurements. Output drive capability of 40 mA per channel is enough to swing a 2 V signal into a 50 Ω load or drive the reference input of a successive-approximation ADC directly.
Package and footprint reality
Housed in a 5-lead SC-70-5 (SOT-353) package, this part fits into tight PCB layouts where board area is at a premium. The surface-mount footprint is standard for the SC-70 family, and the small body means careful stencil design for solder-paste volume — a 0.1 mm thickness is typical. No exposed thermal pad, so thermal dissipation relies on the leadframe and copper pours on the PCB.
Lifecycle and compliance
ROHS3 compliant per the compliance record, which covers the current RoHS exemption list without requiring a separate lead-free qualification step.