Bipolar, 8-Channel DACs address low-power applications.
Press Release Summary:
Available in 12-, 14- and 16-bit versions with either SPI or parallel interface, DAC87x8 series typically draws 14.8 mW/channel in normal mode and less than 170 µW/channel in power-down mode. Internal 4x or 6x programmable gain provides bipolar ±16 V or unipolar 0-33 V output range across 8 channels, eliminating need for external amplifier. Also, product offers 10 µsec settling while maintaining max integral nonlinearity (INL) accuracy of ±4 LSB and typ low glitch energy of 1 nVs.
Original Press Release:
TI's New Family of Eight-Channel, High-Voltage, Bipolar DACs Addresses Low-Power Applications
High channel count and +/-16-V range combine to reduce board space by nearly 24 percent
DALLAS -- Texas Instruments Incorporated (TI) (NYSE:TXN) today introduced six new digital-to-analog converters (DACs) available in 12-, 14- and 16-bit versions and with either SPI or parallel interface. The eight-channel DAC87x8 family features a typical power consumption in normal mode of 14.8 mW/channel, dropping to <170 uW/channel in power-down mode. An internal 4x or 6x programmable gain provides a bipolar +/-16-V or unipolar 0-V to 33-V output range across eight channels. This eliminates the need for an external amplifier, saving cost and reducing board space by nearly 24 percent over competitive devices in automated test equipment (ATE), instrumentation, programmable logic controllers (PLCs), and machine and motion control applications. See more product details at www.ti.com/ads8718-pr.
Key features and benefits
-- The converters offer a three times faster settling time (10-us) than competitive devices while maintaining maximum integral nonlinearity (INL) accuracy of +/-4 LSB and typical low glitch energy of 1 nVs.
-- Built-in user calibration balances the system offset of the entire signal chain.
-- Zero error thermocouple (TC) and gain error TC of +/-3 ppm/degreesC increase system accuracy and repeatability.
-- Two offset DACs allow for either symmetrical or asymmetrical shifting of the output voltage range, allowing a user to customize the application's DAC output without sacrificing resolution.
-- Customers can speed time-to-market with compatible TI devices: the REF5050 single voltage reference, Stellaris® ARM® Cortex-M3-based microcontrollers (MCUs), as well as C2000(TM) Piccolo(TM) and Delfino(TM) MCUs for real-time control.
Availability and pricing
The 16-bit DAC8718 (SPI interface) and DAC8728 (parallel interface) are available now in a 7-mm x 7-mm (SPI version) or 8-mm x 8-mm (parallel version) QFN package. A 10-mm x 10-mm TQFP package is also available. Pricing starts at $21.95 in 1,000-unit quantities. Two additional, pin-compatible devices in the family, the 14-bit DAC82x8 and the 12-bit DAC77x8, are priced at $17.95 and $11.95, respectively, in 1,000-unit quantities.
Find out more about TI's precision data converter portfolio by visiting the links below:
-- Order DAC87x8 evaluation modules and samples: www.ti.com/dac8718-pr.
-- Quickly search TI's entire data converter portfolio or download the latest selection guide: www.ti.com/dataconverters-pr.
-- Ask questions and share knowledge in the precision data converter forum in TI's online E2E Community: www.ti.com/precisiondataconverter-pr.
About Texas Instruments
Texas Instruments (NYSE:TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through manufacturing, design and sales operations in more than 30 countries. For more information, go to www.ti.com.
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