Linear 16-bit SAR ADC for automated test equipment and medical imaging
( 01 Nov 2005 )
Edited by Robin Lange, Managing Editor
Texas Instruments has launched what it says is the "industry’s most linear" 16-bit, SAR 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 non-linearity (DNL) over the entire industrial temperature range (-40_C to +85_C). The device is ideal for advanced, real-time applications in automated test equipment, medical imaging, optical networking, high-speed control loops and highresolution data acquisition systems.
The ADS8372 also provides a complete solution with an on-chip reference and reference buffer, allowing breakthrough signal linearity without requiring active external components. Featuring a fully differential, pseudo-bipolar input range, including a 16-bit capacitorbased 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. Offered in 6_6mm QFN-28 package, each costs $13 in 1,000-unit quantities. A pseudodifferential, unipolar version, the ADS8370, is also available.
