ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 are low cost, high speed, wide supply voltage range, wide output swing range CMOS operational amplifiers. The series products meet the requirements of automotive applications, and have a bandwidth of 220MHz, a slope of 170V/µs, a 0.1% settling time of 28 ns. The series products adopt single-supply power, the supply voltage range is 2.7V to 5.5V, and the output swing can reach 50mV of the supply voltage. The series products have low distortion and low power consumption.
The ADA4891 family comprises single‑, dual‑, triple‑ and quad‑channel CMOS amplifiers offering high speed, low distortion and rail‑to‑rail output. They operate from a single supply (2.7 V‑5.5 V) and are suitable for automotive infotainment, imaging, video, active filters and other high‑performance applications.
The document provides detailed specifications, connection diagrams, ordering information and notes on automotive‑qualified versions (ADA4891‑1W, ADA4891‑2W). It also includes typical performance graphs and absolute maximum ratings.
| Slew rate | 170 V/µs |
|---|---|
| Settling time to 0.1 % (G=+2) | 28 ns |
| Output swing | to within 50 mV of supply rails |
| Supply voltage range | 2.7 V – 5.5 V |
| Quiescent current per amplifier (5 V operation) | 4.4 mA |
| Operating temperature range | ‑40 °C – +125 °C |
The amplifiers operate from a single supply voltage between 2.7 V and 5.5 V.
The output can swing to within 50 mV of either supply rail.
Yes, the ADA4891‑1W and ADA4891‑2W models are qualified for automotive use.