Analog Devices Inc. AD9744 TxDAC® D/A Converters

Analog Devices Inc. AD9744 TxDAC® D/A Converters are 14-bit resolution, wideband, third-generation members of the TxDAC series. This series is high-performance, low-power CMOS digital-to-analog converters (DACs). The TxDAC family, consisting of pin-compatible 8-, 10-, 12-, and 14-bit DACs, is specifically optimized for the transmit signal path of communication systems.

Features

High-performance member of pin-compatible TxDAC product family
Excellent spurious-free dynamic range performance
SFDR to Nyquist
83dBc at 5MHz output
80dBc at 10MHz output
73dBc at 20MHz output
SNR at 5MHz output, 125 MSPS: 77dB
Twos complement or straight binary data format

Differential current outputs: 2mA to 20mA
Power dissipation: 135mW at 3.3V
Power-down mode: 15mW at 3.3V
On-chip 1.2V reference
CMOS-compatible digital interface
28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages
Edge-triggered latches

Applications

Wideband communication transmit channel
Direct IFs
Base stations
Wireless local loops

Digital radio links
Direct digital synthesis (DDS)
Instrumentation

FUNCTIONAL BLOCK DIAGRAM

Block Diagram - Analog Devices Inc. AD9744 TxDAC® D/A Converters

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