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TI Introduces Industry's Most Linear 16-bit SAR ADC for Automated Test Equipment and Medical Imaging

Data Converter Offers

Aug 11, 2005

DALLAS (August 11, 2005) - Texas Instruments Incorporated (TI) (NYSE: TXN) today announced the industry's most linear 16-bit, successive-approximation (SAR) analog-to-digital converter (ADC). The ADS8372 features 16-bit no missing code performance, 600kSPS data rate, less than 0.75 LSB (max) integral nonlinearity (INL) and less than 0.5 LSB (max) differential nonlinearity (DNL) over the entire industrial temperature range (-40C to +85C). The device is ideal for advanced, real-time applications in automated test equipment, medical imaging, optical networking, high-speed control loops and high-resolution data acquisition systems. (See www.ti.com/sc05164.)

The ADS8372 also provides a complete solution with an on-chip reference and reference buffer, allowing breakthrough signal linearity without requiring active external components.
"By ensuring linearity performance below 1 LSB, the ADS8372 is the most accurate 16-bit SAR ADC in the industry," said Tony Chang, strategic marketing engineer for TI's precision data converter products. "The ADS8372 also enables significant board space savings by integrating an internal reference and reference buffer and packaging it in a tiny 6 mm x 6 mm QFN."
The ADS8372 features a fully differential, pseudo-bipolar input range and includes a 16-bit capacitor-based SAR ADC architecture with inherent sample and hold, 4.096V internal reference, internal reference buffer and conversion clock. The device offers a high-speed CMOS, SPI-compatible serial interface with clock speeds up to 40MHz. A pseudo-differential, unipolar version, the ADS8370, is also available.
Other key specifications include +/-0.2 ppm/C offset drift, 94 dB signal-to-noise ratio (SNR), 120 dB spurious-free dynamic range (SFDR) and 110 mW power consumption at 600 kSPS (only 15 mW during nap mode and 10 uW during power down).
The ADS8372 is optimized to work with TI's high-performance TMS320TM DSP platforms. TI also has a range of high-speed amplifiers, such as the THS4031 and THS4131, which are well suited to drive the analog inputs of the ADS8372.

Availability and Packaging

The ADS8372 is a RoHS-compatible "Green" device in a 6 mm x 6 mm QFN-28 package, and is available now from TI and its authorized distributors. The ADS8372 is priced starting at $13.00 in 1,000 piece quantities (suggested resale pricing). Evaluation modules are available.

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