This document is the technical manual of OPA137 series FET-input operational amplifiers. This series of operational amplifiers are designed for low cost and miniature applications. In addition to small size (SOT-23-5 and MSOP-8 packages), they also provide low input bias current (5pA), low quiescent currrent (220µA/ channel), and high open-loop gain (94dB). Either single (+4.5V to +36V) or dual (±2.25 to ±18V) supplies can be used. The input common-mode voltage range includes the positive supply—suitable for many single-supply applications. Single, dual, and quad versions have different package sizes and pin configurations.
The document describes the OPA137 series of low-cost FET-input operational amplifiers designed for miniature applications. The series includes single (OPA137), dual (OPA2137), and quad (OPA4137) versions available in various surface mount and DIP packages. Key features include a low input bias current of 5pA, low quiescent current of 220 µA per channel, and an excellent speed/power ratio with a gain-bandwidth product of 1MHz.
| Input Bias Current (IB) | 5pA |
|---|---|
| Offset Voltage (VOS) | 1.5mV |
| Gain-Bandwidth Product (GBW) | 1MHz |
| Slew Rate (SR) | 3.5V/µs |
| Quiescent Current (IQ) | 220 µA/channel |
| Operating Temperature Range | -40°C to +85°C (Specified) |
The devices are specified from -40 °C to +85 °C and can operate from -55 °C to +125 °C.
The operating voltage range for dual supplies is ±2.25V to ±18V.
The short-circuit current ranges from -25 mA to +60 mA.