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Data Sheet
256-Channel, 16-Bit, Charge-to-Digital AFE on Flex
ADAS1256
FEATURES
GENERAL DESCRIPTION
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.