Overview
256-channel, charge-to-digital conversion on a single chip 16-bit resolution with no missing codes Simultaneous sampling User adjustable full-scale range up to 32 pC Down to 22 µs line time The ADAS1256 is a 256-channel, 16-bit, digital X-ray analog front end (AFE) that integrates the complete charge-to-digital conversion signal chain on a single chip. It enables a wide range of digital X-ray modalities, including portable radiology and mammography as well as high speed fluoroscopy and cardiac Ultralow noise: 560 e- at 2 pC range INL ± 2.5 LSB or 57.5 ppm, ADC included Multiple functional power modes: 1 mW/channel to 3 mW/channel Multiple power-down and sleep modes: down to 0.005 mW/channel Measurement of electron or hole collected charge Tested and delivered on high density system on flex (SOF) LVDS/CMOS self-clocked serial interface SPI daisy-chain configuration registers im.
