Active JFET op-amp for precision signal conditioning
The TL031CDR: It draws only 217 µA supply current, making it a fit for low-power sensor interfaces, active filters, and buffer stages where high input impedance is required.
The 10 V minimum supply means this part does not operate from a single 5 V or 3.3 V rail — plan for at least ±5 V split or a single 10 V+ supply. The 2 pA input bias current (typical) preserves accuracy when buffering high-impedance sources like photodiodes or pH probes. Input offset voltage is 500 µV typical, which is adequate for 12-bit-level DC accuracy but not for microvolt-level measurements without auto-zero.