8 kHz GBW, 425 nA per channel — the power-constrained signal chain
The LPV812DGKT is a dual general-purpose op-amp from Texas Instruments, built for applications where the supply budget is measured in microamps, not milliamps. Its 8 kHz gain-bandwidth product and 425 nA supply current per channel target battery-powered sensor interfaces, electrochemical front-ends, and energy-harvesting nodes that run for years on a single coin cell. The 0.1 pA typical input bias current means it does not load high-impedance sources like pH probes or pyroelectric detectors — the bias error stays negligible even with 10 MΩ source resistance.
Rail-to-rail output, 1.6 V to 5.5 V supply — single-supply flexibility
The rail-to-rail output stage swings within millivolts of both supply rails, preserving dynamic range when the total supply is only 1.6 V. The 55 µV typical input offset voltage keeps DC errors low enough for direct-coupled stages without trimming. Output current is rated at 4.7 mA per channel — sufficient to drive a successive-approximation ADC input or a reference bypass capacitor without an external buffer. The 0.0021 V/µs slew rate is the limiting factor for AC signals: at 8 kHz GBW, the full-power bandwidth into a 10 kΩ load is roughly 100 Hz for a 1 V peak-to-peak swing. This part is for DC and low-frequency conditioning, not audio or fast control loops.
8-VSSOP package, -40°C to 125°C — board integration and environment
Housed in an 8-VSSOP package, which is the same footprint as the 8-TSSOP and 8-MSOP — 3.00 mm × 3.00 mm body, 0.65 mm pin pitch. The small footprint suits multi-layer PCBs where board area is at a premium. The operating temperature range spans -40°C to 125°C, covering both industrial and automotive under-hood environments.