A/D processing of video signals at very high pixel rates

Conference · Mon Aug 01 00:00:00 EDT 1994 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6973251

Turko, B T ^[1]; Albright, K L; King, N S.P.; Yates, G J ^[2]

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1. Lawrence Berkeley Lab., CA (United States)
2. Los Alamos National Lab., NM (United States)

Video wave-form of CCD photocharge, clocked out at very high pixel rates, is a sequence of narrow voltage pulses. Pulse height is proportional to the recovered charge. A method and circuits are described for digitizing such waveforms in a 10-bit range at rates exceeding 75 MHz. Signal processing includes a wide-band clamping amplifier, a self-clocked peak detector, a very fast track/hold amplifier and a 75 MSPS, 10-bit flash converter. Digital data can be stored either in a local high speed RAM or transferred by a fast fiber-optic link to the remote digital storage. Test results (such as linearity, dynamic range and signal/noise ratio) are also given.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6973251
• Report Number(s): CONF-931051-; CODEN: IETNAE
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States), Vol. 41:4Pt1; Conference: NSS-MIC '93: nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 30 Oct - 6 Nov 1993; ISSN 0018-9499
• Country of Publication: United States
• Language: English

Related Subjects

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DIGITIZERS
MEMORY DEVICES
PULSE SHAPERS
VIDEO TAPES
CAMERAS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
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MAGNETIC STORAGE DEVICES
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PULSE CIRCUITS
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440600* - Optical Instrumentation- (1990-)