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Arrangement and method for temperature compensation for resistance

  • US 7,944,270 B2
  • Filed: 04/07/2006
  • Issued: 05/17/2011
  • Est. Priority Date: 04/15/2005
  • Status: Expired due to Fees
First Claim
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1. A temperature compensation arrangement for a resistance comprising:

  • a resistance having a controllable resistance value;

    a reference resistance which forms a switched capacitor;

    a comparator having an input side which is coupled to the resistance having the controllable resistance value and to the reference resistance and having an output for outputting an error signal;

    a control input on the resistance having the controllable resistance value which is coupled to the output of the comparator for controlling the resistance value; and

    a common current source which is switchably connected to two current paths;

    wherein a first current path of the two current paths comprises the resistance having the controllable resistance and a second current path of the two current paths comprises the reference resistance which forms the switched capacitor.

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