AS5951

AS5951

32-slice CT sensor chip with photodiodes and readout circuit
Datasheet

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AS5951
AS5951
Datasheet


Product details

  • Function
    x-ray sensing
  • Input channels
    128
  • Input related noise
    0.21
  • Integration time
    200 µs
  • Power consumption per channel min
    0.82 mW
  • Resolution
    25 bit

OPN
Product Status
Infineon Package
Package Name
Packing Size
Packing Type
Moisture Level
Moisture Packing
Lead-free
Halogen Free
RoHS Compliant
The AS5951 is a cost-optimized sensor chip for 32-slice CT detectors that combines the photodiodes with a pixel dimension of 0.98x0.98 mm² and the readout circuit on a single CMOS chip. This sensor solution, where the photodiode array and a 128-channel ADC are side-by-side, allows the assembly of the pixel array on three adjacent edges of the device. Improved performance can be achieved due to superior dark current, noise and power consumption.

Features

  • Monolithic integration of ADC and photodiode
  • Automatic zero offset voltage calibration
  • Reference voltage and bias current generator
  • High resolution mode and low dose mode
  • Customization of pixel dimensions on request

Benefits

  • Ultra-low dark current of max. 1pA
  • Lowest input related noise of typ. 0.21fC
  • Fast integration time down to 200µs
  • High ADC linearity of ±600ppm including photodiode

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