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The MASDA-X chip - A new multichannel ASIC for readout of pixelated amorphous silicon arrays

Technical Report ·
DOI:https://doi.org/10.2172/2695· OSTI ID:2695
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 address- ing 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 imple- mented by Fermilab and the University of Michigan. 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.
Research Organization:
Fermi National Accelerator Laboratory, Batavia, IL
Sponsoring Organization:
USDOE Office of Energy Research (ER)
OSTI ID:
2695
Report Number(s):
FERMILAB-TM-2063; ON: DE00002695
Country of Publication:
United States
Language:
English

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