12.5 MHz GBW with 525 µA per channel — the power/bandwidth trade-off
The OPA2338UA is a dual CMOS op-amp from TI's MicroAmplifier™ series, delivering 12.5 MHz gain-bandwidth product while drawing only 525 µA per channel. That combination puts it in the sweet spot for multi-channel signal chains where board space and power budget are tight — think portable instrumentation, multi-channel ADC drivers, or active filters in battery-operated equipment.
Input bias and offset — what the 0.2 pA and 500 µV mean for sensor front-ends
With 0.2 pA input bias current, the OPA2338UA is well suited for high-impedance sources like photodiodes, pH probes, or piezoelectric sensors where bias current would otherwise create a significant DC error across the source resistance. The 500 µV input offset voltage is typical for a CMOS amplifier at this speed — adequate for 8- to 10-bit precision, but for 12-bit+ systems you'll want to budget for offset calibration or select a lower-Vos variant.