LinCMOS precision op-amp – 1 pA input bias, rail-to-rail output
Its standout feature is the 1 pA typical input bias current, which makes it suitable for high-impedance sensor interfaces, photodiode amplifiers, and precision integrators where bias-current-induced offset errors would otherwise dominate. The rail-to-rail output stage maximizes dynamic range in single-supply designs operating from 4.6 V to 16 V.
The 100 µV maximum input offset voltage and 1 pA typical input bias current define this part as a precision CMOS amplifier, not a general-purpose bipolar type. For a load-cell or thermocouple front-end running at a gain of 100, the offset contributes 10 mV at the output before any signal — well within the range a downstream ADC can null in firmware. The 1 pA bias means a 10 MΩ source resistor produces only 10 µV of additional offset, which is negligible in most precision analog chains.