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DACs consume 0.1mA per channel

Posted: 29 Aug 2011 ?? ?Print Version ?Bookmark and Share

Keywords:DAC? wireless base station? power consumption?

Texas Instruments Inc. (TI) has debuted a line of dual 16-, 14- and 12bit DACs, the DAC8562, that claims to provide the industry's highest precision and lowest power consumption. The devices have a 25 percent improvement on integral nonlinearity (INL) and 60 percent lower offset error compared to similar devices, TI added.

The DAC8562 provides 1nV-sec glitch energy, a maximum offset error of 4mV, a maximum INL of 0.75LSB at 12bits and a maximum reference drift of 10ppm/C. TI said the DACs are ideal for space and power-constrained systems such as programmable logic control (PLC) analog output modules, motor control and precision instrumentation.

DACs

TI's 16, 14 and 12bit DACs consume only 0.1mA per channel to minimize the power required for wireless base stations.

The DACs consume only 0.1mA 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. They also tout reduced cost and board space with an integrated precision reference that provide 20mA sink/source capability to eliminate the need for an external buffer.

TI's DACs support different control loops with options for both reset to zero-scale and reset to mid-scale to provide greater design flexibility. They are also designed for harsh industrial environments up to 125C, 20 higher than competing products, added the company.

TI offers free tools and support to speed development with the DAC8562 family that include two evaluation modules for quick evaluation, the DAC8562EVM and DAC7562EVM, for a suggested retail price of $49. An IBIS model to verify board signal integrity requirements is also available.





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