ams AS5900 CT Detector Interface



The AS5900 device is a low noise, 128-channel current-to-digital converter that enables the readout of the photodiodes with highest sensitivity. High-resolution CT imaging can be achieved up to 26-bits resolution. Its 128-low-noise and high linear converter channels provide an increased gray scale, improved contrast and reduce artifacts of 3D CT images. The low power consumption of 1mW per channel reduces self-heating effects and the overall power consumption of the system. An integrated temperature sensor allows the calibration of temperature drifts of the X-ray detector modules.



  • Flexible configuration to get the optimized operation point in your application
  • Adjustable full scale range, resolution, integration time and power consumption
  • High speed LVDS data interface
  • On board voltage reference and temperature sensor


  • Ultra-low noise down to 3200 electrons for a full-scale range up to 1µA
  • Very fast integration time down to 50µs
  • High linearity of ±250ppm of reading ±1ppm of FSR
  • Very low power dissipation down to 1mW/channel
  • Up to 26-bit resolution

Ordering codes

Product Type Description Order No. Availability



Short datasheet

Technical documents

Environmental documents

Lifecycle documents