Part # ADAS1128 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: ADAS1128 128 Channel 24-bit Current to Digital ADC Preliminary Technical Data (Rev. PrE)

Part Details:

128 Channel, 24-bit Current to Digital ADC Preliminary Technical Data ADAS1128 FEATURES GENERAL DESCRIPTION 128 Channel low level currents- to-digital converter The ADAS1128 is a 128-Channel, current to digital analog-to- Up to 24 bit resolution digital converter ADC. It contains 128 low power, low noise, Up to 20ksps (50s integration time) low input current integrators, simultaneous sample-holds and Simultaneous Sampling two high speed, high resolution ADCs with configurable Ultra Low noise ( down to 0.4fC (2500e-) ) sampling rate and resolution up to 24 bits. User adjustable full-scale range INL: ±0.025% of Reading ±1ppm of FSR All converted channel results are output on a single LVDS self- Very Low Power dissipation: 4.5 mW/channel clocked serial interface reducing external hardware. LVDS/CMOS self-clocked serial interface An SPI-compatible serial interface allows configuration of the Daisy-chain Configuration registers ADC using the SDI input. The SDO output allows one to daisy On-Board Temperature Sensor and Reference Buffer chain several ADCs on a single, 3-wire bus. It uses the separate Mini-BGA package 10mm × 10mm supply VIO to reduce digital noise effect on the conversions. Low-cost external components The ADAS1128 is housed in a mini-BGA package, 10mm by 10mm. APPLICATIONS CT Scanner Data Acquisition Photodiode Sensors and Power Monitoring Spectroscopy High Channel Count Data Acquisition Systems (current or voltage input) SUPPORT TOOLS Evaluation Board Reference Design with reference layout (3 layers) FPGA Verilog Code FUNCTIONAL BLOCK DIAGRAM 2.5V 3.3V to next SDI to al ADCs BUFPL BUFNL SDO F SCK AN0 REF S/H Configuration CS OR0 + RESET ADCL SDI F - AN63

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ADAS1128.pdf Datasheet