AD9764ARUZ

The AD9764ARUZ is a 14-bit resolution member of the TxDAC series of high-performance, low-power CMOS digital-to-analog converters (DACs) from Analog Devices. Optimized for communication systems, it supports update rates up to 125 MSPS.

This DAC offers a flexible single-supply operating range of 2.7 V to 5.5 V, making it suitable for portable and low-power applications. It features differential current outputs ranging from 2 mA to 20 mA and a fast settling time of 35 ns (typical). The device includes an on-chip 1.20 V reference and operates with a power dissipation of 190 mW at 5 V, reducing to 45 mW at 3 V. A power-down mode further lowers consumption to approximately 25 mW.

The AD9764ARUZ is housed in a 28-lead TSSOP package for surface mounting. Its architecture is based on a segmented current source, combined with a proprietary switching technique to enhance dynamic performance and reduce spurious components. The device supports parallel data interface and has an integral non-linearity (INL) of ±2.5 LSB (minimum) and ±1.5 LSB (maximum).

Applications for the AD9764ARUZ include communication transmit channels, basestations, ADSL/HFC modems, and instrumentation. Its pin-compatible family allows for upward or downward component selection based on performance, resolution, and cost requirements.