Importance

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Abstract

Circuits and methods to minimize nonlinearity errors in interpolating circuits are described herein. A disclosed example circuit comprises first and second voltage-current converter circuits, each including a first transistor and a second transistor, each having a first electrode configured to receive a signal generated by a corresponding current source, a first current source providing a signal to the first voltage-converter circuit and comprising a first error correction circuit to minimize integral nonlinearity error in the interpolation circuit by setting a first current through the first current source to operate the first voltage-converter circuit in a nominal linear operating mode, and a second current source providing a signal to the second voltage-converter circuit and comprising a second error correction circuit to minimize integral nonlinearity error in the interpolation circuit by setting a second current through the second current source to operate the second voltage-converter circuit in the nominal linear operating mode.

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First Claim