The AD812 is a low power, single supply, dual video amplifier. Each of the amplifiers have 50 mA of output current and are optimized for driving one back-terminated video load (150 Ω) each. Each amplifier is a current feedback amplifier.
The AD812 is a dual, current‑feedback operational amplifier offered in 8‑lead plastic DIP and SOIC packages. It is designed for video line driver applications, providing high output current, low supply voltage operation, and excellent video performance such as 0.1 dB gain flatness to 40 MHz and very low differential gain and phase errors.
Typical specifications include a unity‑gain bandwidth of 145 MHz, a slew rate of 1600 V/µs, and a supply voltage range from about 2.4 V to 18 V. The device can operate from a single +3 V supply and delivers up to 50 mA output current per amplifier, making it suitable for professional cameras, video switchers, and special‑effects equipment.
| Unity‑gain bandwidth | 145 MHz |
|---|---|
| Gain flatness | 0.1 dB to 40 MHz |
| Output current | 50 mA per amplifier |
| Slew rate | 1600 V/µs |
| Supply voltage range | 2.4 V to 18 V |
| Quiescent current per amplifier | 4.0 mA (typical at +5 V) |
| Operating temperature range | -40 °C to +85 °C |
The AD812 can operate from about 2.4 V up to 18 V.
Each amplifier can source up to 50 mA of output current.
Typical applications include video line drivers, professional cameras, video switchers, and special‑effects equipment.
The unity‑gain bandwidth is 145 MHz.