System and method for digital compensation of digital to analog and analog to digital converters

A digitally compensated digital to analog converter system comprising:

• a digital to analog converter;
• an anti-function coefficient generator system for generating anti-function digital coefficients corresponding to the error function of the digital to analog converter;
• and
• an anti-function processor for applying the anti-function digital coefficients to the digital input to the digital to analog converter for digitally compensating for the error function of the digital to analog converter.

A digitally compensated analog to digital converter system comprising:

• an analog to digital converter;
• a storage device for storing anti-function digital coefficients corresponding to an error function of the analog to digital converter;
• and
• an anti-function processor for applying generated anti-function digital coefficients to the digital output of the analog to digital converter for digitally compensating for the error function of the analog to digital converter.

A digitally compensated signal converter system comprising:

• a signal converter;
• a storage device for storing anti-function digital coefficients corresponding to an error function of the signal converter;
• and
• an anti-function processor for applying generated anti-function digital coefficients to a digital signal of the signal converter for digitally compensating for the error function of the signal converter.

A method of digitally compensating a digital to analog converter comprising:

• receiving digital input data for a digital to analog converter;
• supplying anti-function digital coefficients derived from the error function of the digital to analog converter corresponding to the digital input data;
• and
• applying the anti-function digital coefficients to said digital input data to precondition said digital input data to compensate for the error function of said digital to analog converter.

A method of generating anti-function digital coefficients for a digital to analog converter comprising:

• selecting a digital basis function;
• providing a digital input code to the digital to analog converter;
• measuring the output of the digital to analog converter corresponding to that input code;
• calculating from the measured output the error function of the digital to analog converter;
• and
• calculating from the error function and the digital basis function the anti-function digital coefficients.

A method of digitally compensating an analog to digital converter comprising:

• receiving analog to digital converter digital signal data;
• supplying anti-function digital coefficients derived from the error function of the analog to digital converter corresponding to the digital signal data;
• and
• applying the anti-function digital coefficients to said digital input data to precondition said digital input data to compensate for the error function of said analog to digital converter.

A method of digitally compensating a signal converter comprising:

• receiving signal converter digital signal data for;
• supplying anti-function digital coefficients derived from the error function of the signal converter corresponding to the digital signal data;
• and
• applying the anti-function digital coefficients to said digital signal data to precondition said digital signal data to compensate for the error function of said signal converter.