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Converter chip brings cleaner, accurate images

Posted: 09 Feb 2009 ?? ?Print Version ?Bookmark and Share

Keywords:current to digital? chip converter? images accurate?

Analog Devices Inc. has developed a current-to-digital converter chip that enables high slice count computed tomography (CT) scanner systems to capture real-time moving images, such as a beating heart, with a high degree of accuracy and detail.

The ADAS1128 is a 24bit current-to-digital converter that changes photodiode array signals into digital signals. The product offers 128 data conversion channels, provides an increase in speed from 6KSps to 20KSps and supports four times more channels (128 vs. 32) than any competitive products, according to the company.

The new 24bit current-to-digital converter consumes less than half the power of other solutions (4.5mW/channel vs. 10mW/channel at full speed). It also offers no charge loss, more choices of full scale ranges and ultra-low noise (down to 0.4fC for low-dose X-ray systems). The ADAS1128 is housed in a 10mm x 10mm mini BGA package.

Now in volume production, its pricing per channel is $1.50. In 250-piece quantities, its price is $192.

- Ismini Scouras

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