AD9747BCPZ 14-Bit 2.5 GSPS High-Speed DAC with Low Power LVDS Inputs Excellent SFDR Flexible Clocking Wide Bandwidth & Industrial Temp Range

AD9747BCPZ 14-Bit 2.5 GSPS High-Speed DAC with Low Power LVDS Inputs Excellent SFDR Flexible Clocking Wide Bandwidth & Industrial Temp Range

FEATURES

High dynamic range, dual DACs

Low noise and intermodulation distortion

Single carrier WCDMA ACLR = 80 dBc at 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-pin LFCSP

APPLICATIONS

Wireless infrastructure: WCDMA, CDMA2000, TD-SCDMA, WiMAX

Wideband communications: LMDS/MMDS, point-to-point

Instrumentation: RF signal generators, arbitrary waveform generators

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.

A proprietary, dynamic output architecture permits synthesis of analog outputs even above Nyquist by shifting energy away from the fundamental and into the image frequency. Full programmability is provided through a serial peripheral interface (SPI) port. In addition, some pin-programmable features are offered for those applications without a controller.

PRODUCT HIGHLIGHTS

Low noise and intermodulation distortion (IMD) enables high quality synthesis of wideband signals.

Proprietary switching output for enhanced dynamic performance.

Programmable current outputs and dual auxiliary DACs provide flexibility and system enhancements.

INFORMATION

Drawing

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• High quality products --- our offers are 100% new and original, ROHS
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• Fast delivery --- we will ship the goods within 1-3 working days after the payment confirmed.

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