AD9779

The AD9779 is a dual 16-bit high performance, high frequency DAC that provides a sample rate of 1 GSPS, permitting multi carrier generation up to its Nyquist frequency. It includes features optimized for direct conversion transmit applications, including complex digital modulation and gain and offset compensation.

The DAC outputs are optimized to interface seamlessly with analog quadrature modulators such as the AD8349. A serial peripheral interface (SPI) provides for programming many internal parameters and also enables read-back of status registers. The output current can be programmed over a range of 10mA to 30mA. The AD9779 is manufactured on an advanced 0.18µm CMOS process and operates from 1.8V and 3.3V supplies for a total power consumption of 950mW. It is supplied in a 100-lead QFP package.