OPA627/637 is a precision FET op amp with low noise, low offset voltage and much higher speed, it is useful in a broad range of precision and high speed analog circuitry
The OPA627 and OPA637 are precision high‑speed FET operational amplifiers offering very low noise, low offset voltage, and low input bias current. They operate from a wide supply range of +4.5 V to +18 V and are available in plastic DIP, SOIC, and metal TO‑99 packages, with industrial and military temperature options.
The datasheet provides detailed electrical specifications, pin configurations, typical performance curves, and application guidance for precision instrumentation, fast data acquisition, audio circuitry, and more. It also includes handling recommendations such as ESD sensitivity and package ordering information.
| Input Offset Voltage (typ) | 40 nV |
|---|---|
| Input Bias Current (typ) | 1 pA |
| Voltage Noise Density at 10 kHz (typ) | 45 nV/√Hz |
| Power Supply Range | +4.5 V to +18 V |
| Operating Temperature Range (AP, BP, AM, BM, AU grades) | -25 °C to +85 °C |
Both amplifiers operate from +4.5 V up to +18 V.
The typical input offset voltage is 40 nV.
Yes, the OPA627 is unity‑gain stable.
They are offered in plastic DIP, SOIC, and metal TO‑99 packages.