Hybrid digital and analog signal generation systems and methods

A method of sourcing a signal, comprising:

• providing an input signal to a data processor;
• processing the input signal via the data processor;
• sending the processed input signal via the data processor to a first and second path, the first and second paths comprising two or more digital-to-analog converters (DAC) to generate two or more frequency components;
• generating, via the first path, a first path output of substantially low frequency signals;
• generating, via the second path, a second path output of substantially high frequency signals;
• combining the first and second path outputs into a source signal via a combining circuit;
• sensing the source signal via a feedback portion;
• providing, via the feedback portion, the sensed source signal to a servo loop;
• and
• using the sensed source signal to maintain, via the servo loop, substantial agreement between the source signal and the input signal by at least one of:
• removing DC errors;
• removing low frequency errors;
• and
• maintaining an integrity of the high frequency signals.