A low noise readout detector circuit for nanoampere sensor applications

Journal Article · Fri Feb 28 23:00:00 EST 1997 · IEEE Journal of Solid-State Circuits

DOI:https://doi.org/10.1109/4.557631· OSTI ID:471085

Thelen, Jr, D C ^[1]; Chu, D D ^[2]

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1. Univ. of New Mexico, Albuquerque, NM (United States). Microelectronics Research Center
2. Sandia National Labs., Albuquerque, NM (United States). Custom Microcircuits and Nonvolatile Memories

A readout detector IC has been developed which is capable of detecting nanoampere photo-current signals of interest in a high (microampere) background illumination or dc noise level (SNR = 80 dB). The readout detector sensor IC processes transient signals of interest from a separate photo-diode pixel array chip. Low noise signal conditioning, filtering, and signal thresholding implement smart sensor detection of only active pixels. This detector circuit can also be used to perform signal conditioning for other sensor applications that require detection of very small signals in a high background noise environment.

• OSTI ID: 471085
• Journal Information: IEEE Journal of Solid-State Circuits, Journal Name: IEEE Journal of Solid-State Circuits Journal Issue: 3 Vol. 32; ISSN IJSCBC; ISSN 0018-9200
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
INTEGRATED CIRCUITS
MEASURING INSTRUMENTS
PHOTODIODES
READOUT SYSTEMS
SIGNAL CONDITIONING