The OP290 is a high performance micropower dual op amp that operates from a single supply of 1.6 V to 36 V or from dual supplies of ±0.8 V to ±18 V. Input voltage range includes the negative rail allowing the OP290 to accommodate input signals down to ground in single-supply operation. The OP290’s out- put swing also in...
The OP290 is a micropower dual op‑amp with true single‑supply operation from 1.6 V to 36 V (or dual supplies of 0.8 V to +18 V). It features a low supply current, high output drive, low input offset voltage, high open‑loop gain and excellent power‑supply rejection. Typical quiescent current is under 20 µA per amplifier and it can source at least 5 mA into a load.
Typical applications include battery‑powered instruments, remote sensors and satellite equipment. The device includes a PNP input stage with series protection resistors that allow input voltages up to 20 V beyond either supply rail, making it suitable for harsh environments. Various performance graphs illustrate offset voltage versus temperature, gain‑bandwidth, slew rate and other key parameters.
| Supply Voltage Range (single‑supply) | 1.6 V to 36 V |
|---|---|
| Supply Voltage Range (dual‑supply) | 0.8 V to +18 V |
| Quiescent Supply Current | < 20 µA per amplifier |
| Output Drive Capability | ≥ 5 mA per amplifier |
| Input Offset Voltage | 200 µV max (typical 125 µV) |
| Open‑Loop Gain | ≥ 700 V/mV |
| Power‑Supply Rejection Ratio (PSRR) | 5.6 V/V max |
| Gain‑Bandwidth Product | 20 kHz (V+ = +15 V) |
| Slew Rate | 5 – 12 V/ms |
| Common‑Mode Rejection Ratio | 80 – 100 dB (V+ =5 V, V‑ =0 V) |
The OP290 can operate from a single supply as low as 1.6 V, or from dual supplies of 0.8 V to +18 V.
Each amplifier can source at least 5 mA of output current.
The device draws less than 20 µA of quiescent supply current per amplifier.