GENERAL DESCRIPTION
●The AD9741/AD9743/AD9745/AD9746/AD9747 are pin compatible, high dynamic range, dual digital-to-analog converters (DACs) with 8-/10-/12-/ 14-/16-bit resolutions and sample rates of up to 250 MSPS. The devices include specific features for direct conversion transmit applications, including gain and offset compensation, and they interface seamlessly with analog quadrature modulators, such as the ADL5370.
●FEATURES
●High dynamic range, dual DACs
●Low noise and intermodulation distortion
●Single carrier WCDMA ACLR = 80 dBc @ 61.44 MHz IF
●Innovative switching output stage permits useable outputs
● beyond Nyquist frequency
●LVCMOS inputs with dual-port or optional interleaved
● single-port operation
●Differential analog current outputs are programmable from
● 8.6 mA to 31.7 mA full scale
●Auxiliary 10-bit current DACs with source/sink capability for
● external offset nulling
●Internal 1.2 V precision reference voltage source
●Operates from 1.8 V and 3.3 V supplies
●315 mW power dissipation
●Small footprint, Pb-free, 72-Lead LFCSP
●APPLICATIONS
●Wireless infrastructure: WCDMA, CDMA2000, TD-SCDMA, WiMAX
●Wideband communications: LMDS/MMDS, point-to-point
●Instrumentation: RF signal generators, arbitrary waveform generators
