The ADAS1131 is a 256-channel, current-to-digital analog-to- digital converter (ADC) module. It contains 256 low power, low noise, low input current integrators, simultaneous sample-and- holds, and two high speed, high resolution ADCs with configurable sampling rate and resolutions of up to 24 bits. The signal chain and sampling architecture of the ADAS1131 is designed to guarantee that all channels are simultaneously sampled, and that no charge is lost throughout the sampling process.
All converted channel results are output on a single, low voltage differential signaling (LVDS), self clocked serial interface, which reduces external hardware.
An SPI-compatible serial interface allows configuration of the ADC using the SDI_x input. The SDO_x output allows the user to daisy-chain several ADCs on a single, 3-wire bus. The ADAS1131 uses the separate supply, IOVDD, to reduce digital noise effect on the conversions.
The ADAS1131 is in a 15 mm × 15 mm, CSP_BGA package.
A short-form datasheet for this product is available for download from this web page. Complete documentation including detailed hardware and software guides are available upon completion of a Non-Disclosure Agreement (NDA) (pdf, 30,264 bytes). Send your completed forms by e-mail to ADAS@analog.com. Additional support is available from your Analog Devices local sales.
Please contact the ADC Development Group for additional technical information.
|Title||Content Type||File Type|
|ADAS1131: 256-Channel, 24-Bit Current-to-Digital ADC Module Data Sheet (Rev Sp0, 07/2014) (pdf, 56 kB)||Data Sheets|
|Industry’s First 256-Channel, 24-Bit Current-to-Digital Converter Module for CT Scanners Simplifies Design and Reduces System Costs (30 Jul 2014)||Press Releases||HTML|
|Glossary of EE Terms||Glossary||HTML|
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