DUAL 8-BIT MULTIPLYING DIGITAL-TO-ANALOG CONVERTERS

The TLC7628C TLC7628E and TLC7628I are dual, 8-bit, digital-to-analog converters (DACs) designed with separate on-chip data Latches and feature exceptionally close DAC-to-DAC matching. Data is transferred to either of the two DAC data Latches through a common, 8-bit input port. Control input DACA/DACB determines which DAC is loaded. The load cycle of these devices is similar to the write cycle of a random-access memory, allowing easy Interface to most popular Microprocessor buses and output ports. Segmenting the high-order bits minimizes glitches during changes in the most significant bits, where glitch impulse is typically the strongest. The TLC7628C operates from a 10.8-V to 15.75-V power supply and is TTL-compatible over this range. 2- or 4-quadrant multiplying makes these devices a sound choice for many microprocessor-controlled gain-setting and signal-control applications. The TLC7628C is characterized for operation from 0C to 70C. The TLC7628I is characterized for operation from 25C to 85C. The TLC7628E is characterized for operation from 40C to 85C. By Texas Instruments