Amplifier

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11232937
APP PUB NO 20200136569A1
SERIAL NO

16494083

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A capacitive trans-impedance amplifier comprising a voltage amplifier having an inverting input terminal for connection to an input current source. A feed-back capacitor is coupled between the inverting input terminal and the output terminal to accumulate charges received from the input current source and to generate a feed-back voltage accordingly. A calibration unit includes a calibration capacitor electrically coupled, via a calibration switch, to the inverting input terminal and electrically coupled to the feed-back capacitor. The calibration unit is operable to switch the calibration switch to a calibration state permitting a discharge of a quantity of charge from the calibration capacitor to the feed-back capacitor. The capacitive trans-impedance amplifier is arranged to determine a voltage generated across the feed-back capacitor while the calibration switch is in the calibration state and to determine a capacitance value (C=Q/V) for the feed-back capacitor according to the value of the generated voltage (V) and the quantity of charge (Q).

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Patent Owner(s)

  • ISOTOPX LTD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jones, Anthony Michael Cheshire, GB 7 10
Tootell, Damian Paul Cheshire, GB 6 8
Volkovoy, Vadim Cheshire, GB 3 5

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