Single-supply, low-power op-amp for battery and industrial rails
It operates from 1.5 V to 5.5 V — covering a 1.8 V logic rail, a 3.3 V sensor supply, or a 5 V industrial bus without a secondary regulator — and draws 60 µA typical supply current, making it a fit for always-on sensor nodes, battery-powered instrumentation, and portable medical devices. The rail-to-rail output stage preserves dynamic range on low-voltage rails, which matters when the ADC reference is the same supply.
The wide temperature range also covers cold-crank and hot-soak conditions in automotive body electronics.
The input bias current of 1 pA is a CMOS advantage: it lets you use high-impedance sensors (pH probes, photodiodes) without a separate buffer stage, and it keeps DC errors from bias-current-induced voltage drops across source resistors.
Output drive and package
The SOT-23-5 (SC-74A) footprint is a standard small-signal package that fits existing board layouts and is straightforward to hand-assemble or rework.
For dual-sourcing flexibility, the TSV630IQ2T and TSV630ICT are parametric matches — same 880 kHz GBW, same 0.34 V/µs slew rate, same 1 pA bias current, same supply range and temperature grade — differing only in package variant (DFN for the IQ2T, SC-70 for the ICT). The TSV621ICT is a lower-bandwidth sibling (420 kHz, 0.14 V/µs) for applications where the 880 kHz GBW is not needed and a few microamps less supply current matters.