Method and apparatus for clockless analog-to-digital conversion and peak detection

DeGeronimo, Gianluigi

Title: Method and apparatus for clockless analog-to-digital conversion and peak detection

Patent · Tue Mar 06 00:00:00 EST 2007

OSTI ID:1176134

DeGeronimo, Gianluigi

An apparatus and method for analog-to-digital conversion and peak detection includes at least one stage, which includes a first switch, second switch, current source or capacitor, and discriminator. The discriminator changes state in response to a current or charge associated with the input signal exceeding a threshold, thereby indicating whether the current or charge associated with the input signal is greater than the threshold. The input signal includes a peak or a charge, and the converter includes a peak or charge detect mode in which a state of the switch is retained in response to a decrease in the current or charge associated with the input signal. The state of the switch represents at least a portion of a value of the peak or of the charge.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC02-98CH10886

Assignee:: Brookhaven Science Associates, LLC (Upton, NY)

Patent Number(s):: 7,187,316

Application Number:: 11/346,831

OSTI ID:: 1176134

Country of Publication:: United States

Language:: English

References (13)

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A digital multi-channel spectroscopy system with flash ADC module for the GENIUS-TF and GENIUS projects Kihm, T.; Bobrakov, V. F.; Klapdor-Kleingrothaus, H. V. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 498, Issue 1-3 https://doi.org/10.1016/S0168-9002(02)02118-6	journal	February 2003
Analog peak detector and derandomizer for high-rate spectroscopy De Geronimo, G.; Kandasamy, A.; O'Connor, P. IEEE Transactions on Nuclear Science, Vol. 49, Issue 4 https://doi.org/10.1109/TNS.2002.801701	journal	August 2002
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Front-end ASIC for a GEM based time projection chamber De Geronimo, G.; Fried, J.; O'Connor, P. IEEE Transactions on Nuclear Science, Vol. 51, Issue 4 https://doi.org/10.1109/TNS.2004.832294	journal	August 2004
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A photon counting pixel chip with energy windowing Fischer, P.; Helmich, A.; Lindner, M. IEEE Transactions on Nuclear Science, Vol. 47, Issue 3 https://doi.org/10.1109/23.856711	journal	June 2000

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