Method and apparatus for cyclic return to zero techniques for digital to analog convertors

A digital to analog converter (DAC) to perform digital to analog conversion, comprising:

• at least two return to zero (RTZ) signal generating circuits to perform digital to analog conversion;
• and
• a cycler to cycle between the at least two RTZ signal generating circuits such that one of the RTZ signal generating circuits performs digital to analog conversion for at least an entire sample period while others of the at least two RTZ signal generating circuits return to approximately zero or other approximately constant value for the entire sample period.

A digital to analog converter (DAC) to perform digital to analog conversion, comprising:

• at least two return to zero (RTZ) sub-DACs;
• and
• an RTZ sub-DAC cycler to cycle between the at least two RTZ sub-DACs such that one of the RTZ sub-DACs performs digital to analog conversion for at least an entire sample period while others of the at least two RTZ sub-DACs return to approximately zero or other approximately constant value for the entire sample period.

A method for performing digital to analog conversion, comprising:

• generating at least three RTZ signals to perform digital to analog conversion;
• and
• cycling between the at least three RTZ signals such that one of the RTZ signals is active over at least an entire sample period to convert a digital input bit into analog form while others of the at least three RTZ signals are returned to approximately zero or other approximately constant value for at least an entire sample period.

A digital to analog converter (DAC) to perform digital to analog conversion, comprising:

• at least two signal generating circuits to perform digital to analog conversion;
• and
• a cycler to cycle between the at least two signal generating circuits such that one of the signal generating circuits is active to perform digital to analog conversion for at least an entire sample period while others of the at least two signal generating circuits are inactive.

A digital to analog converter (DAC) to perform digital to analog conversion, comprising:

• at least three signal generating circuits to perform digital to analog conversion;
• and
• a cycler to cycle between the at least three signal generating circuits such that one of the signal generating circuits is active to perform digital to analog conversion for at least an entire sample period while others of the at least three signal generating circuits are inactive.

A digital to analog converter (DAC) to perform digital to analog conversion, comprising:

• at least three return to zero (RTZ) sub-DACs;
• and
• an RTZ sub-DAC cycler to cycle between the at least three RTZ sub-DACs such at one of the RTZ sub-DACs is active to perform digital to analog conversion for at least entire sample period while others of the at least three RTZ sub-DACs are inactive.