The DAC8562 D/A Converter

Published:2011/8/24 1:24:00 Author:Phyllis From:SeekIC

Texas Instruments Inc., the world leading analog and digital semiconductor IC design and manufacturing company, introduced a dual 16-, 14- and 12-bit digital-to-analog converters (DACs) recently.





The DAC8562 family delivers 25-percent better offset error than similar devices, and its best-in-class power consumption and ultra-small size making it an ideal for space and power-constrained systems like programmable logic control (PLC) analog output modules, precision instrumentation and portable medical equipment, wireless base stations, motor control. It consumes only 0.1 mA per channel to minimize the power required for VGA control in wireless base stations, as well as to operate tunable laser modules, CNC machines and portable medical devices, such as oscilloscopes and portable blood analyzers. These DACs offer the user low cost, and ease-of-use in +5 volt only systems with a CBCMOS process.

The DAC8562 is coded straight binary. The op amp output swings from 0 to +4.095 volts for a one millivolt per bit resolution, and is capable of driving ±5 mA. With low temperature-coefficient silicon-chrome thin-film resistors, excellent linearity error versus digital input code plot.

High speed digital interface is parallel to the fastest processors with no waits states. The interface is very simple requiring only a single CE signal. The output is set to zero scale by an asynchronous CLR input.

The DAC8562 is available in to different 20-pin packages, plastic DIP and SOL-20. Each part is fully specified for operation over -40°C to +85°C, and the full +5 V ±5 % power supply range.

The family is characterized in best-in-class precision with 0.1 nV-sec glitch energy, a maximum offset error of 4 mV, a maximum INL of 0.75 LSB at 12-bits and a maximum reference drift of 10 ppm/degree C improves system accuracy.

Devices in the DAC8562 family are pin-for-pin compatible and are all available today in either a 3-mm×3-mm QFN or 3-mm×5-mm MSOP package. As for the pricing, 4.2 dollars for 16-bit DAC8562 and DAC8563, and 3.85dollars for 14-bit DAC8162 and DAC8163, also 2.50 dollars for 12-bit DAC7562 and DAC7563.

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