The OP497 is a quad op amp with precision performance in the space-saving, industry standard 16-lead SOlC package. Its com- bination of exceptional precision with low power and extremely low input bias current makes the quad OP497 useful in a wide variety of applications.
The OP497 quad op‑amp delivers precision performance with a low offset voltage of 50 µV max, low offset drift of 0.5 µV/°C, and a very low input bias current of 100 pA at 25 °C (450 pA over the military temperature range). It operates from a supply voltage of +2 V to +20 V, consumes only 625 pA per amplifier, and provides a high open‑loop gain of 2000 V/mV with a common‑mode rejection of at least 120 dB.
Designed for applications such as strain‑gauge amplifiers, thermocouple amplifiers, instrumentation amplifiers, photo‑current monitors, peak detectors, and long‑term integrators, the OP497 also includes ESD protection and recommends careful PCB layout with guard rings to maintain its picoampere‑level input impedance.
| Input Bias Current (25 °C) | 100 pA max |
|---|---|
| Supply Voltage Range | +2 V to +20 V |
| Common‑Mode Rejection Ratio | 120 dB min |
| Power Supply Rejection Ratio | 120 dB min |
| Open‑Loop Gain | 2000 V/mV min |
| Supply Current (per Amplifier) | 625 pA max |
The OP497 can be powered up to +20 V.
The input bias current is 100 pA max at 25 °C.
The device provides a common‑mode rejection of at least 120 dB.
Each amplifier draws up to 625 pA of supply current.