Package and mounting
The OPA391DCKT is a single-channel, rail-to-rail output op-amp from TI's e-trim™ series. Its 15 µV maximum input offset voltage and 0.01 pA input bias current suit microvolt-level sensor outputs. The 1 MHz gain-bandwidth product and 1 V/µs slew rate keep supply draw at 24 µA.
Supply range and temperature grade — the deployment envelope
Runs from 1.7 V to 5.5 V single supply. The -40°C to 125°C operating range covers outdoor and industrial environments. Surface-mount SC-70-5 package (SOT-353 footprint).
Active lifecycle — no LTB clock ticking
Listed as Active by TI. No last-time-buy notice, no NRND flag. For a BOM line, that means standard distribution availability and no forced redesign cycle. The e-trim™ series is TI's internal trimming technology that achieves the low offset without external nulling — it's a production feature, not a separate product family, so the part is a mainstream catalog item.
Output drive and rail headroom
Can source or sink 60 mA per channel, generous for a 24 µA quiescent part. Rail-to-rail output reaches within millivolts of the supply rails.