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Integrated circuit with trimming

  • US 9,331,086 B2
  • Filed: 07/14/2009
  • Issued: 05/03/2016
  • Est. Priority Date: 07/23/2008
  • Status: Active Grant
First Claim
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1. Integrated circuit, comprising:

  • at least one first group each having at least one analog circuit;

    at least one second group each having at least one electronically settable semi-permanent switching circuit coupled to the at least one analog circuit of the first group for trimming the first group and having at least one many-times-programmable and non-volatile cell;

    wherein each many-times-programmable cell comprises at least one MOS transistor connected in series with one of the analog circuits and having a source and drain in parallel with a source and drain of at least another MOS transistor in another one of the many-times-programmable cells, and having a floating gate with a tunnel oxide and a first capacitor coupled to the floating gate; and

    wherein the capacitance of the first capacitor is substantially larger than a gate-channel capacitance of the MOS transistor;

    wherein the at least one analog circuit comprises at least one of a capacitor, an inductor, and a time delay unit, andwherein the at least on electronically settable semi-permanent switching circuit includes a plurality of switching circuits that are grouped in bits, where the nth bit contains 2n many-times-programmable cells, where n is a positive integer.

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