Reader for electromagnetic radiation detection element, sensor, and the corresponding read process
AssigneeCommissariat a l'Energie Atomique
InventorPhilippe Pantigny
Life of this patent
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Abstract
The invention relates to a reader for an electromagnetic radiation detection element comprising: at least one integration capacitor (16) to integrate electrical charges output by the said detection element, an amplifier (18) with a high impedance terminal (20) connected to the integration capacitor (16) and a low impedance terminal connected to an output stage (22), and means (24, 27) of isolating the integration capacitor (16) from the detection element when the capacitor voltage exceeds a set value. According to the invention, the comparator means are connected to the low impedance terminal (50) of the amplifier (18). Application to sensors in matrices.
Claims11
A reader for at least one electromagnetic radiation detection element comprising:
- an integration capacitor to integrate electrical charges that can be connected to said electromagnetic radiation detection element to output a voltage that is a function of the electrical charges output by said detection element,
- an amplifier with a high impedance terminal connected to said integration capacitor and a low impedance terminal connected to an output stage, and
- comparator means to isolate said integration capacitor from said detection element when the voltage at terminals of said capacitor is greater than a set value, characterized in that the comparator means are connected to the low impedance terminal of the amplifier.
Dependencies are inferred from the claim text.