Apparatus and methods for nonlinearity cancellation in electronic systems are disclosed. In certain embodiments, an electronic system includes two or more circuit channels that process a common input signal in parallel and that each include at least one instantiation of a circuit that behaves nonlinearly. Thus, the nonlinear circuit is replicated and included at least once in each circuit channel. Each of the circuit channels has an input scaling factor and an output scaling factor that can vary from one circuit channel to another. The output signals from the circuit channels after scaling are combined to generate a combined output signal. The input and output scaling factors are selected to cancel or reduce nonlinearities.

Systems and methods for operating a signal converter. The methods comprise; establishing a first interface between the signal converter and an analog device of a first network, and a second interface between the signal converter and an edge node of a different second network; supplying power to a first circuit portion of the signal converter from the analog device, and power to a second circuit portion of the signal converter from the edge node; receiving, by the first circuit portion, a first analog signal from the analog device; converting, by the first circuit portion, the first analog signal to a first electrical signal; formatting, by the second circuit portion, the first electrical signal for communication over the second network; and communicating, from the second circuit portion, the formatted first electrical signal to the edge node.

Systems and methods for operating a signal converter. The methods comprise; establishing a first interface between the signal converter and an analog device of a first network, and a second interface between the signal converter and an edge node of a different second network; supplying power to a first circuit portion of the signal converter from the analog device, and power to a second circuit portion of the signal converter from the edge node; receiving, by the first circuit portion, a first analog signal from the analog device; converting, by the first circuit portion, the first analog signal to a first electrical signal; formatting, by the second circuit portion, the first electrical signal for communication over the second network; and communicating, from the second circuit portion, the formatted first electrical signal to the edge node.