Patent ID: 7378998

Claim:
A method for correction of static mismatch errors in a D/A converter, wherein an input word, the input word being a digital representation of an analog input signal, is divided into one most significant part, a msb-word, and one least significant part, a lsb-word, and wherein said msb-word is represented by msb-bits and said lsb-word is represented by lsb-bits, comprising: setting an effective weight of the least significant msb-bit to be less than a sum of the lsb-bits; implementing a first look up table, LUT 1 , containing a most significant part of the error, so that a corrected msb-word, c-msb-word, would be equal to a sum of said msb-word and a value in LUT 1 representing said msb-word; and implementing a second look up table, LUT 2 , containing a least significant part of the error, so that a first corrected output, c1-output, would be equal to a sum of c-msb-word and a value in LUT 2 representing said sum of c-msb-word and said lsb-word.