The MASDA-X Chip - A New Multichannel ASIC for Readout of Pixelated Amorphous Silicon Arrays
Oct 30, 1998Citations per year
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Abstract:
The MASDA-X chip is designed specifically for reading out large amorphous silicon pixel arrays used in medical imaging research. Instrumenting these arrays requires a set of digital row addressing chips to sequentially select the pixel rows for readout, and a set of column readout chips to collect and process the analog charge transferred to each column by the selected pixels. A 32-channel column readout chip, MASDA-R, has previously been designed and successfully implemented by Fermilab and the University of Michigan [l]. However, new arrays require an updated readout chip design with much tighter input channel pitch for direct mating to arrays. A new 128 channel chip, MASDA-X, has been designed at Fermilab. This chip incorporates performance improvements along with tighter channel pitch. MASDA-R was designed in the H.P. 0.8-micron process, which will no longer be available. Therefore, MASDA-X has been designed in the H.P. 0.5 micron 3.3V process.References(0)
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