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Description

The AD9742 is a 12-bit resolution, wideband, third generation member of the TxDAC series of 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. All of the devices share the same interface options, small outline package, and pinout, providing an upward or downward component selection path based on performance, resolution, and cost. The AD9742 offers exceptional ac and dc performance while supporting update rates up to 210 MSPS.

Features

1. High performance member of pin-compatible TxDAC product family
2. Excellent spurious-free dynamic range performance
3. SNR at 5 MHz output, 125 MSPS: 70 dB
4. Twos complement or straight binary data format
5. Differential current outputs: 2 mA to 20 mA
6. CMOS compatible digital interface
7. Edge-triggered latches

Applications 

1. Wideband communication transmit channel:
2. Direct IF
3. Base stations
4. Wireless local loops
5. Digital radio links
6. Direct digital synthesis (DDS)
7. Instrumentation