AD9772AASTZ

The AD9772AASTZ is a 14-bit, 160 MSPS digital-to-analog converter (DAC) from Analog Devices, part of the TxDAC+ family. It integrates a 2x digital interpolation filter and a clock multiplier, enabling high-performance waveform reconstruction for baseband or IF applications. The DAC accepts a parallel data interface and provides a differential current output (unbuffered). Its architecture is current source based, achieving a settling time of 11 ns typical.

Key electrical specifications include a supply voltage range of 3.1V to 3.5V, typical power dissipation of 250 mW (13 mW in power-down mode), and an operating temperature range of -40°C to +85°C. Dynamic performance is highlighted by 74 dBc SFDR at 25 MHz, 73 dB image rejection with 0.005 dB pass-band ripple, and a reconstruction passband of 67.5 MHz at 160 MSPS. Integral nonlinearity (INL) is ±3.5 LSB max, and differential nonlinearity (DNL) is ±2 LSB max.

The device is housed in a 48-lead LQFP surface-mount package (7x7mm). It is suited for communication transmit channels, W-CDMA and multicarrier base stations, direct IF synthesis, wideband cable systems, and instrumentation requiring high dynamic range. The AD9772AASTZ is RoHS3 compliant and lead-free, but compliance data should be verified with official documentation.