AD9122 Rev. B is a 16-bit, 1230 MSPS, TxDAC+ digital-to-analog converter produced by Analog Devices. It features a flexible LVDS interface, single-carrier WCDMA ACLR, adjustable analog output, integrated 2×/4×/8× interpolator/complex modulator, gain, DC offset and phase adjustment, multiple chip synchronization interfaces, high performance, low noise PLL clock multiplier, digital inverse sinc filter and low power.
The AD9122 is a dual, 16‑bit, high‑dynamic‑range digital‑to‑analog converter that supports a sample rate of 1230 MSPS, enabling multicarrier generation up to the Nyquist frequency. It is optimized for direct‑conversion transmit applications and includes a flexible LVDS interface, programmable output current, and multichip synchronization.
Key features include an integrated 2×/4×/8× interpolator, low‑noise PLL clock multiplier, programmable gain/offset/phase adjustment, and a low‑power consumption of 834 mW in 2× mode with the PLL off. The device is supplied in a 72‑lead LFCSP package and is intended for wireless infrastructure, wideband communications, and high‑IF synthesis applications.
| Resolution | 16 Bits |
|---|---|
| Maximum Sample Rate | 1230 MSPS |
| Full‑Scale Output Current | 18.66 mA – 31.66 mA |
| Operating Temperature Range | −40 °C to +85 °C |
The AD9122 can operate at a maximum sample rate of 1230 MSPS.
The full‑scale output current can be programmed between 18.66 mA and 31.66 mA.
The device is rated for temperatures from –40 °C to +85 °C.