ATE461554T1

Replica network for linearizig switched capacitor circuits

Abstract

The present invention relates to a replica network (400) for linearizing switched capacitor circuits. A bridge circuit (406) with a MOSFET resistor (424) disposed in a resistor branch of the bridge circuit is provided. A noninverting terminal of an operational amplifier (408) is connected to a first node (B) of the bridge circuit and an inverting terminal of the operational amplifier is connected to a second note (D) of the bridge circuit. The second node is separated from the first node by another node (C) of the bridge circuit. An output of the operational amplifier (408) is provided to a gate terminal of the MOSFET resistor (424) and to the gate terminal of the MOSFET switch (204) in a switched capacitor circuit, thereby controlling the resistance of the MOSFET switch so that it is independent of the signal voltage. In this manner, the replica network of the present invention linearizes the switched capacitor circuit. In this manner, the replica network of the present invention linearizes the switched capacitor circuit.

Term

Term ended

Projected expiry passed 10 January 2022, 4.7 years ago.

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12 members in 4 offices

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Priority claims
DocumentOfficeKindDate
26092401United States of AmericaP
91149801United States of AmericaA

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DocumentOfficeKind
US2002089366A1United States of AmericaA1
EP1227589A2European Patent Office (EPO)A2
EP1227589A3European Patent Office (EPO)A3
US6720799B2United States of AmericaB2
US2004160263A1United States of AmericaA1
US6861879B2United States of AmericaB2
US2005140397A1United States of AmericaA1
US7049860B2United States of AmericaB2
EP1227589B1European Patent Office (EPO)B1
AT461554TAustriaT
ATE461554T1This recordAustriaT1
DE60235665D1GermanyD1