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Offset-free rail-to-rail derandomizing peak detect-and-hold circuit

Patent ·
OSTI ID:875012
 [1];  [2];  [3]
  1. Nesconset, NY
  2. Bellport, NY
  3. Coram, NY
+ Show Author Affiliations

A peak detect-and-hold circuit eliminates errors introduced by conventional amplifiers, such as common-mode rejection and input voltage offset. The circuit includes an amplifier, three switches, a transistor, and a capacitor. During a detect-and-hold phase, a hold voltage at a non-inverting in put terminal of the amplifier tracks an input voltage signal and when a peak is reached, the transistor is switched off, thereby storing a peak voltage in the capacitor. During a readout phase, the circuit functions as a unity gain buffer, in which the voltage stored in the capacitor is provided as an output voltage. The circuit is able to sense signals rail-to-rail and can readily be modified to sense positive, negative, or peak-to-peak voltages. Derandomization may be achieved by using a plurality of peak detect-and-hold circuits electrically connected in parallel.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY
DOE Contract Number:
AC02-98CH10886
Assignee:
Brookhaven Science Associates LLC (Upton, NY)
Patent Number(s):
US 6512399
OSTI ID:
875012
Country of Publication:
United States
Language:
English

References (8)

Fast peak detector stretchers for use in XAFS applications journal January 1999
Low voltage MOS-transistor-only precision current peak detector with signal independent discharge time constant conference January 1997
A novel peak amplitude and time detector for narrow pulse signals journal December 1986
A CMOS peak detect sample and hold circuit journal January 1994
On the Design of Pulse Peak Stretchers journal January 1969
A low-power, CMOS peak detect and hold circuit for nuclear pulse spectroscopy journal January 1995
Very low-power consumption analog pulse processing ASIC for semiconductor radiation detectors
  • Wessendorf, K. O.; Lund, J. C.; Brunett, B. A.
  • 1998 IEEE Nuclear Science Symposium Conference Record. 1998 IEEE Nuclear Science Symposium and Medical Imaging Conference (Cat. No.98CH36255) https://doi.org/10.1109/NSSMIC.1998.775189
conference January 1998
A preamplifier-shaper-stretcher integrated circuit system for use with germanium strip detectors journal January 2000

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