The OPA241,2241,4241 and OPA251,2251,4251 are single-supply, microPOWER operational amplifiers from Burr-Brown Corporation. Their features include: IQ=25µA, single-supply operation, voltage output range of +2.7V to +36V, rail-to-rail output swing (within 50mV), wide supply range, low output noise (±250µV max), high common-mode rejection (124dB), high open-loop gain (128dB), single, dual, and quad channels
The OPA241 and OPA251 families are single‑supply, rail‑to‑rail operational amplifiers optimized for low‑power (5 V) and higher‑power (15 V) applications respectively. They are intended for battery‑operated instruments, portable devices, medical equipment, and test gear, offering low offset voltage, high common‑mode rejection, and high open‑loop gain.
Key specifications include a wide supply range, low quiescent current, and various package options (8‑pin DIP, SO‑8, 14‑pin DIP, SO‑14). Detailed performance curves, absolute maximum ratings, and ordering information are provided throughout the document.
| Supply Voltage Range (single supply) | +2.7 V to +36 V |
|---|---|
| Supply Voltage Range (dual supply) | +1.35 V to +18 V |
| Input Offset Voltage | max +250 µV |
| Input Bias Current | typical 25 nA |
| Gain‑Bandwidth Product | 35 kHz |
| Slew Rate | 0.01 V/µs |
| Quiescent Current (per amplifier) | typical 25 µA |
The OPA241 operates from a single supply of +2.7 V to +36 V or a dual supply of +1.35 V to +18 V.
Typical quiescent current is about 25 µA per amplifier.
The input offset voltage is specified up to +250 µV.
Single‑version parts are offered in 8‑pin DIP and SO‑8; dual versions in 8‑pin DIP and SO‑8; quad versions in 14‑pin DIP and SO‑14.