Patent ID: 8078133

Claim:
A system for minimizing phase jumps in an output signal, the system comprising: an input module to receive an input voltage signal and convert the voltage signal to a current signal, the input module outputting the current signal; a switching stage to receive the current signal and output a first signal comprising high-frequency upconverted products and low-frequency downconverted products; an interface, comprising at least one capacitor, to receive the first signal and attenuate the high-frequency upconvereted products while outputting a second signal comprising the low-frequency downconverted products; a load module to receive the second signal, the load module comprising an operational amplifier and at least one variable resistance load, with the load module outputting the output signal, a gain of the system determined by an impedance of the variable resistance load; and wherein a product of a magnitude of the capacitor of the interface and a magnitude of the variable resistance load is substantially constant in view of varying the variable resistance load.