What this zero-drift amp brings to the board
The Texas Instruments LMP2021MF/NOPB is a single-channel zero-drift operational amplifier in a SOT-23-5 package. It delivers a 5 MHz gain-bandwidth product with a 0.4 µV input offset voltage — the kind of precision that matters when you are amplifying a thermocouple, a strain-gauge bridge, or a shunt voltage where the signal is in the microvolt range and drift over temperature would swamp the measurement. The 2.6 V/µs slew rate is modest; this is not a video-line driver or a fast ADC buffer. It is sized for instrumentation front-ends, weigh scales, medical sensor interfaces, and industrial loop-powered transmitters where the zero-drift topology keeps the offset stable across the -40°C to 125°C range.
Supply and output — what the numbers mean for the BOM
Supply span runs from 2.2 V to 5.5 V. Quiescent current is 1.1 mA. Output can source or sink 50 mA. Input bias current is 25 pA.
Lifecycle and sourcing posture
Status is Active per the manufacturer record, with ROHS3 compliance. No end-of-life notice, no last-time-buy window. The part is sourced to order through independent distribution.
