GENERAL DESCRIPTION
●The ADAS1128 is a 128-channel, current-to-digital, analog-to digital converter (ADC). It contains 128 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 up to 24 bits.
●FEA TURES
●128-channel, low level current-to-digital converter
●Up to 24-bit resolution
●Up to 19.7 kSPS (50.7 µs integration time)
●Simultaneous sampling
●Ultralow noise (down to 0.4 fC [2500e
●])
●User-adjustable full-scale range
●INL: ±0.025% of reading ±0.75 ppm of FSR
●Very low power dissipation: 4.5 mW/channel
●L VDS self-clocked serial data interface
●SPI configuration registers (daisy-chain)
●On-board temperature sensor and reference buffer
●10 mm × 10 mm, mini-BGA package
●Low cost external components
●Support tools
● Evaluation board
● Reference design with reference layout
● FPGA Verilog code
●APPLICA TIONS
●Medical, industrial, and security CT scanner data acquisition
●Photodiode sensors
●Dosimetry and radiation therapy systems
●Optical fiber power monitoring
●X-ray detection systems
●High channel-count data acquisition systems (current or voltage inputs)
