TI introduces industry's first 4-20mA DAC with integrated buck/boost converter that operates off of a single-supply
Texas Instruments » DAC8775
Precision data converter helps shrink board space and design costs for industrial automation
Texas Instruments (TI) introduced a digital-to-analog converter (DAC) that combines industry-leading precision performance with simpler power-supply design. The 16-bit DAC8775 operates from a single, wide 12- to 36-V power rail, leveraging an integrated buck/boost converter to generate all of the required internal power supplies to save designers time, cost and significant board space.
The four-channel DAC8775 addresses the trend in factory automation and process control equipment toward input/output (I/O) modules that must squeeze more channels into a smaller space. Engineers designing these systems face the challenge of managing power dissipation in a small form factor. By combining a 4-20 mA current and voltage driver with a precision reference and a buck/boost converter, the DAC8775 enables a total system footprint that is up to 25 percent smaller than the nearest competing device. Expanding TI's versatile portfolio of precision data converters, this highly integrated DAC can deliver smaller and more efficient designs with advanced diagnostic capabilities.
Key features and benefits of the DAC8775 data converter
Tools and support to jump-start design
A four-channel analog output module reference design demonstrates the combination of the DAC8775 and the LM5166 high-efficiency synchronous buck converter that dissipates less than 1 W of power in factory-automation implementations. Additionally, an evaluation module is available for US$149 for designers to simulate and optimize the DAC8775.
Availability and pricing
The DAC8775 is available now through the TI store and authorized distributors. The device comes in a 10-mm-by-10-mm quad-flat no-lead (QFN) package and is priced at US$15.72 in 1,000-unit quantities.
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