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Track and hold with dual pump circuit

  • US 6,731,155 B2
  • Filed: 12/03/2002
  • Issued: 05/04/2004
  • Est. Priority Date: 02/13/2002
  • Status: Expired due to Fees
First Claim
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1. A dual pump circuit having an input and an output, comprising:

  • a transmission gate including a p-channel transistor and an n-channel transistor, each transistor having a control terminal and a pair of current terminals coupled between the dual pump input and the dual pump output; and

    a dual charge pump including first and second pump circuits, each coupled to the dual pump input and to a control terminal of a corresponding one of the transmission gate transistors and operative to linearize operation of the corresponding transmission gate transistor.

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