The dual-port high speed 2-channel 10-/12-/14-bit CMOS DACs. Each part integrates two high quality TxDAC+® cores, a voltage reference and digital interface circuitry into a small 48-lead LQFP. The model offer exceptional AC and DC performance while supporting update rates of up to 125 MSPS. The model have been optimized for processing I and Q data in communications applications. The digital interface consists of two double-buffered latches as well as control logic. Separate write inputs allow data to be written to the two DAC ports independent of one another. Separate clocks control the update rate of the DACs.
Members of a pin-compatible family of dual TxDACs providing 8-, 10-, 12-, and 14-bit resolution
Dual 10-/12-/14-bit, 125 MSPS DACs
Gain matching is typically 0.1% of full scale, and offset error is better than 0.02%
Complete CMOS dual DAC function operates on 380mW from a 3.3 to 5V single supply
The DAC full-scale current can be reduced for lower power operation and a sleep mode is provided for low power idle periods
On-CHIP VOLTAGE REFERENCE
Flexible dual-port interface, allowing dual or interleaved input data