The document describes the features and characteristics of the single-supply, high-speed, fixed gain of +2, rail-to-rail output video amplifier ADA4856-3.
The ADA4856-3 is a fixed‑gain (+2) video amplifier designed for single‑supply operation from 3 V to 5.5 V. It delivers rail‑to‑rail output swing (0.1 V to 4.9 V) and supports high‑speed video applications with a 225 MHz –3 dB bandwidth and 800 V/µs slew rate. The device operates over an extended industrial temperature range (‑40 °C to +105 °C) and is available in a 16‑lead LFCSP package.
Key features include low quiescent current (≈78 mA per amplifier at 5 V), a power‑down mode reducing supply current to ~1 mA, and robust ESD protection. Detailed specifications, pin descriptions, and typical performance graphs are provided for both 5 V and 3.3 V operation.
| Supply voltage range | 3 V to 5.5 V |
|---|---|
| -3 dB bandwidth (5 V operation) | 225 MHz |
| Output voltage swing | 0.1 V to 4.9 V |
| Quiescent current per amplifier (5 V) | 78 mA |
| Typical supply current per amplifier | 7.8 mA |
The device operates from 3 V up to 5.5 V.
At 5 V operation the quiescent current is about 78 mA per amplifier.
It can swing from 0.1 V up to 4.9 V.
The –3 dB bandwidth is 225 MHz (5 V operation).