Hot-selling and scarce AD9745BCPZ MSPS Digital-to-Analog Converters QFN spot stock

Product Descriptions

The AD9741/AD9743/AD9745/AD9746/AD9747 are pincompatible, high dynamic range, dual digital-to-analogconverters (DACs) with 8-/10-/12-/ 14-/16-bit resolutionsand sample rates of up to 250 MSPS . The devices includespecific features for direct conversion transmit applications,including gain and offset compensation, and they interfaceseamlessly with analog quadrature modulators, such as theADL5370 .

A proprietary, dynamic output architecture permits synthesisof analog outputs even above Nyquist by shifting energy awayfrom the fundamental and into the image frequency.

Full programmability is provided through a serial peripheralinterface (SPI) port . In addition, some pin-programmablefeatures are offered for those applications without a controller.

Product 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

Product Applications

Wireless infrastructure:

WCDMA, CDMA2000,TD-SCDMA,WiMAX

Wideband communications:

LMDS/MMDS, point-to-point

Instrumentation:

RF signal generators, arbitrary waveform generators

Product Specification

Product Photos

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