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1. (WO2010115497) SENSOR READOUT CIRCUIT, SENSOR AND METHOD FOR READING OUT A SENSOR ELEMENT

Pub. No.:    WO/2010/115497    International Application No.:    PCT/EP2010/001466
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Wed Mar 10 00:59:59 CET 2010
IPC: G01J 1/46
H01J 43/30
Applicants: EXCELITAS TECHNOLOGIES GMBH & CO KG
JESCH, Hartmut
BARDEN, Raimund
STEIGEL, Dirk
REICHERT, Willi
Inventors: JESCH, Hartmut
BARDEN, Raimund
STEIGEL, Dirk
REICHERT, Willi
Title: SENSOR READOUT CIRCUIT, SENSOR AND METHOD FOR READING OUT A SENSOR ELEMENT
Abstract:
A sensor readout circuit (2) comprises an input terminal (11) for a sensor element (1) for electromagnetic radiation producing an electric sensor signal, an integrator (12) for integrating the sensor signal, a reset means (13) for resetting the integrator, and a control circuit (14) for repeatedly operating the reset means after an integrating period. A buffer capacitor (15) is connected to the input terminal. A buffer switch (16) is operable by the control circuit for connecting the input terminal with the integrator input within the integration period and disconnecting it therefrom during integrator reset.