Advanced Imaging


Industry News

Updated: July 8th, 2008 05:26 PM CDT

TI Introduces Industry's Fastest 16-Bit SAR ADC at 4MSPS

via PRNewswire

DALLAS , June 26 /PRNewswire/ -- Texas Instruments Incorporated (NYSE: TXN)(TI) today announced the industry's fastest 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) which is 33 percent faster than the nearest competitive device. The ADS8422 achieves 4 MSPS without sacrificing AC or DC performance, making it ideal for a wide range of demanding applications such as medical imaging, test and measurement, industrial automation and scientific instrumentation. (See .)

"The ADS8422 combines best-in-class speed with superior precision specifications, enabling customers to push the boundaries in their advanced applications," said Art George , senior vice president of TI's high-performance analog business. "Texas Instruments continues to develop breakthrough dataconverter solutions with leading-edge resolution, speed and performance."

The ADS8422 features excellent AC and DC specifications, such as 92dBsignal-to-noise ratio (SNR), -102dB total harmonic distortion (THD), 2LSBintegral nonlinearity (INL), +1.5/-1LSB differential nonlinearity (DNL), +/-0.5mV offset voltage over temperature, less than 0.2ppm/C offset drift, +/-0.1percent gain error and 2ppm/C gain drift.

The device has a fully differential input with pseudo bipolar input range(-4V to +4V) and includes either a full 16-bit interface or two 8-bit optionmodes so data can be read in cycles, if necessary. Other features include aninternal 4.096V reference and reference buffer, single-supply operation and guaranteed operation over the industrial temperature range of -40C to +85C.

TI provides customers with an advanced signal chain solution for high-speed, high-precision applications including an extensive portfolio of wideband amplifiers to drive the analog inputs of the ADS8422, such as the THS4031, THS4131 and OPA2613. The ADS8422 includes a separate I/O supply tosimplify the digital interface, making it well suited to work with TI's high-performance TMS320(TM) DSP platform.

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