GENERAL DESCRIPTION

The AD97091 is a dual-port, high speed, 2-channel, 8-bit CMOS DAC. It integrates two high quality 8-bit TxDAC+® cores, a voltage reference, and digital interface circuitry into a small 48-lead LQFP package. The AD9709 offers exceptional ac and dc performance while supporting update rates of up to 125 MSPS.

FEATURES

8-bit dual transmit digital-to-analog converter (DAC)

125 MSPS update rate

Excellent SFDR to Nyquist @ 5 MHz output: 66 dBc

Excellent gain and offset matching: 0.1

Fully independent or single-resistor gain control

Dual port or interleaved data

On-chip 1.2 V reference

Single 5 V or 3.3 V supply operation

Power dissipation: 380 mW @ 5 V

Power-down mode: 50 mW @ 5 V

48-lead LQFP

APPLICATIONS

Communications

Base stations

Digital synthesis

Quadrature modulation

3D ultrasound