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Title: Sensor readout detector circuit

Abstract

A sensor readout detector circuit is disclosed that is capable of detecting sensor signals down to a few nanoamperes or less in a high (microampere) background noise level. The circuit operates at a very low standby power level and is triggerable by a sensor event signal that is above a predetermined threshold level. A plurality of sensor readout detector circuits can be formed on a substrate as an integrated circuit (IC). These circuits can operate to process data from an array of sensors in parallel, with only data from active sensors being processed for digitization and analysis. This allows the IC to operate at a low power level with a high data throughput for the active sensors. The circuit may be used with many different types of sensors, including photodetectors, capacitance sensors, chemically-sensitive sensors or combinations thereof to provide a capability for recording transient events or for recording data for a predetermined period of time following an event trigger. The sensor readout detector circuit has applications for portable or satellite-based sensor systems.

Inventors:
 [1];  [2]
  1. (Albuquerque, NM)
  2. (Bozeman, MT)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
871773
Patent Number(s):
5793230
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
sensor; readout; detector; circuit; disclosed; capable; detecting; signals; nanoamperes; microampere; background; noise; level; operates; standby; power; triggerable; event; signal; predetermined; threshold; plurality; circuits; formed; substrate; integrated; operate; process; data; array; sensors; parallel; active; processed; digitization; analysis; allows; throughput; types; including; photodetectors; capacitance; chemically-sensitive; combinations; provide; capability; recording; transient; events; period; time; following; trigger; applications; portable; satellite-based; systems; sensor signals; noise level; time following; detector circuit; threshold level; predetermined threshold; power level; integrated circuit; predetermined period; background noise; sensor systems; circuit operates; readout detector; sensor readout; active sensors; sensitive sensor; sensor signal; capacitance sensor; /327/

Citation Formats

Chu, Dahlon D., and Thelen, Jr., Donald C. Sensor readout detector circuit. United States: N. p., 1998. Web.
Chu, Dahlon D., & Thelen, Jr., Donald C. Sensor readout detector circuit. United States.
Chu, Dahlon D., and Thelen, Jr., Donald C. Thu . "Sensor readout detector circuit". United States. https://www.osti.gov/servlets/purl/871773.
@article{osti_871773,
title = {Sensor readout detector circuit},
author = {Chu, Dahlon D. and Thelen, Jr., Donald C.},
abstractNote = {A sensor readout detector circuit is disclosed that is capable of detecting sensor signals down to a few nanoamperes or less in a high (microampere) background noise level. The circuit operates at a very low standby power level and is triggerable by a sensor event signal that is above a predetermined threshold level. A plurality of sensor readout detector circuits can be formed on a substrate as an integrated circuit (IC). These circuits can operate to process data from an array of sensors in parallel, with only data from active sensors being processed for digitization and analysis. This allows the IC to operate at a low power level with a high data throughput for the active sensors. The circuit may be used with many different types of sensors, including photodetectors, capacitance sensors, chemically-sensitive sensors or combinations thereof to provide a capability for recording transient events or for recording data for a predetermined period of time following an event trigger. The sensor readout detector circuit has applications for portable or satellite-based sensor systems.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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