DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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

Abstract

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.

Inventors:
Issue Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176134
Patent Number(s):
7187316
Application Number:
11/346,831
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 42 ENGINEERING

Citation Formats

DeGeronimo, Gianluigi. Method and apparatus for clockless analog-to-digital conversion and peak detection. United States: N. p., 2007. Web.
DeGeronimo, Gianluigi. Method and apparatus for clockless analog-to-digital conversion and peak detection. United States.
DeGeronimo, Gianluigi. Tue . "Method and apparatus for clockless analog-to-digital conversion and peak detection". United States. https://www.osti.gov/servlets/purl/1176134.
@article{osti_1176134,
title = {Method and apparatus for clockless analog-to-digital conversion and peak detection},
author = {DeGeronimo, Gianluigi},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 06 00:00:00 EST 2007},
month = {Tue Mar 06 00:00:00 EST 2007}
}

Works referenced in this record:

Development of a high-rate high-resolution detector for exafs experiments
journal, August 2003


A digital multi-channel spectroscopy system with flash ADC module for the GENIUS-TF and GENIUS projects
journal, February 2003

  • 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

Analog peak detector and derandomizer for high-rate spectroscopy
journal, August 2002


Multi-energy X-ray imaging with linear CZT pixel arrays and integrated electronics
conference, January 2004


Front-end ASIC for a GEM based time projection chamber
journal, August 2004


Front-end Electronics for Spectroscopy Applications (FESA) IC
conference, January 2000


Novel electronics for MCP imaging detectors
journal, February 2005

  • Lees, J. E.; Bassford, D.; Whitford, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 537, Issue 3
  • https://doi.org/10.1016/j.nima.2004.08.067

High-speed FPGA-based pulse-height analyzer for high resolution X-ray spectroscopy
journal, August 2005


A 32-channel, 0.25 /spl mu/m CMOS ASIC for the readout of the silicon drift detectors of the ALICE experiment
journal, October 2004


RX64DTH -a fully integrated 64-channel ASIC for a digital X-ray imaging system with energy window selection
journal, August 2005


A Gray-code MOS current-mode analog-to-digital converter design
conference, January 1991


A 16 channel VLSI chip, containing charge amplifier and analog to digital converter, for readout of highly granular particle detectors
journal, April 1998

  • Barlag, C.; Carlen, L.; El Chenawi, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 406, Issue 2
  • https://doi.org/10.1016/S0168-9002(98)91989-1

A photon counting pixel chip with energy windowing
journal, June 2000