Date: 18/11/2010

12-bit, 8-channel DAC from TI for multi-channel, high-density applications

Texas Instruments Incorporated has unveiled a 12-bit, 8-channel digital-to-analog converter (DAC) with I2C interface for multi-channel, high-density applications, such as power amplifier control in wireless base stations, portable instrumentation, data acquisition systems and laser bias control. TI claims that the DAC7678 is the first 8-channel DAC from TI with a 2-wire I2C interface, which simplifies layout and minimizes design time. The DAC7678 includes integrated output buffer amplifiers and 2.5-V internal reference, and it can be configured to reset to zero or mid-scale.

Key features and specs:
Integrated precision reference with low drift, +/- 5 mV initial accuracy and 20-mA sink/source.
Low-power performance of 0.13 mA/channel at 5 V allows designers to achieve high accuracy of +/- 1 LSB maximum INL, settling time of 7 us and ultra-low glitch of 0.15 nV-s.
Fully characterized over a wide temperature range of -40 C to 125 C for use in industrial applications.

Package: 4-mm x 4-mm QFN-24 or a 5-mm x 6-mm TSSOP-16 package

Price: Resale pricing starts at US$3.00, US$3.90, US$5.50, for 1K pieces.