AD9776A/AD9778A/AD9779A are 12/14/16-bit, 1GSPS digital-to-analog converters manufactured by Analog Devices
The AD9776A/AD9778A/AD9779A family provides high‑dynamic‑range digital‑to‑analog conversion for wireless infrastructure and wideband communications. They feature a 3‑wire serial interface, adjustable full‑scale output current, and built‑in interpolators that allow carrier placement anywhere in the DAC bandwidth.
Typical applications include W‑CDMA, LTE, Wi‑Max, and point‑to‑point broadband links. The devices are supplied in a 100‑lead thin‑quad flat package with an exposed pad for optimal thermal performance.
| Resolution | 12, 14, or 16 bits |
|---|---|
| Differential Nonlinearity (DNL) | ±0.1 LSB (12‑bit), ±0.65 LSB (14‑bit), ±2.1 LSB (16‑bit) |
| Integral Nonlinearity (INL) | ±0.86 LSB (12‑bit), ±1.5 LSB (14‑bit), ±6.0 LSB (16‑bit) |
| Output Resistance | 10 MΩ |
The devices support a sample rate of up to 1 GSPS.
They are available in 12‑, 14‑, or 16‑bit resolution.
Power consumption is 1.0 W at 1 GSPS.
A 3‑wire serial interface is used for programming and readback.