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High-Speed Converters

Fri, 11/01/2002 - 6:09am
The third generation of TxDAC® digital-to-analog converters includes the 14-bit AD9744, the 12-bit AD9742, and the 10-bit AD9740. The family is optimized for the transmit signal path of communications infrastructure, including cable head-end systems, optical networking systems, and multi-carrier 3G base stations. Low power dissipation and 3 V operation also make them ideal for portable applications. The AD9744 has typical integral nonlinearity of ± 0.8 LSB and differential nonlinearity of ± 0.5 LSB at 14-bits. The devices have differential current outputs from 2 mA to 20 mA and include a 1.2 V temperature-compensated band gap voltage reference. They operate on a single 3.0 V to 3.6 V supply and consume 135 mW.
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