Integrates all ADC functions to minimize the usability of external components

ams announced the launch of the AS5900, a new current-to-digital converter for Computed Tomography (CT) scanners that offers extremely low noise while providing excellent resolution and novelty.

The AS5900 offers excellent analog performance, enabling new CT scanners to display images more clearly and in greater detail. By equipping medical CT scanners with the AS5900, the X-ray detector module is enhanced, allowing medical professionals to make more accurate diagnoses and reducing patient exposure to radiation.

The AS5900 minimizes the need for external components by integrating all the functions of a current-input ADC. This includes internal reference voltage and temperature sensors. This integration enables system cost reduction by decreasing the bill of materials (BOM). Additionally, the AS5900 provides a standard LVDS interface to the host FPGA. This allows it to operate at data rates of up to 80 Mbps to optimize power consumption.

"The AS5900 has very low noise and very high resolution, allowing CT scanner OEMs to use flexible pixel sizes to achieve better images at higher full-scale ranges," said Josef Pertl, Product Marketing Manager at ams. “Medical professionals will be able to observe a significant difference in image quality and clarity through next-generation CT scanner products based on this new high-performance current-to-digital converter. Operating with low noise in high-speed and low-power environments enables the production of CT images free of motion artifacts even at the highest rotational speeds, while also reducing radiation exposure for patients,” he said.