AS5900 CT Detector Interface
128-channel low noise current-to-digital converter
Features
- 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
Benefits
- 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
Product parameters
Applications | Medical CT, Industrial and Security X-ray scanner |
---|---|
Primary Function | Current-to-digital Converter |
Channels | 128 |
Resolution [bit] | 26 |
Input Related Noise | 0.51 |
Min. Power Consumption [mW per Channel] | 1 |
Min. Integration Time / Line Time [µs] | 50 |
Package | FBGA248 (10mm x 10mm) |
General description
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.

This product suits for the following applications:
- Medical CT, Industrial and Security X-ray scanner
- Multi-channel sensors with current output (i.e. photodiode arrays)
- DAS (data acquisition system) for current input

Tools
Title | Category | Headline | Buy |
---|---|---|---|
AS5900EvalBoard | Application Board | Evaluation Board for AS5900 |
Technical documents
Type | Description | Language | ||
---|---|---|---|---|
Special Datasheet | AS5900 Short Datasheet | English |
Environmental documents
Type | Description | Language | ||
---|---|---|---|---|
RoHS Certificate | RoHS Certificate_AS5900 | English |
Notifications
Type | Description | Language | ||
---|---|---|---|---|
Product Change Notification | PCN38-2018 (AS5900) | English |
Other information
Type | Description | Language | ||
---|---|---|---|---|
Block Diagram | AS5900 Block Diagram | English | ||
Factsheet | High resolution CT imaging | English | ||
Image | AS5900 Front View | |||
Image | AS5900 Back View | |||
Image | AS5900 Stacked View |