1. An electronic circuit comprising: a plurality of multiplier modules for receiving a plurality of first input signals and respective ones of a plurality of second input signals, each multiplier module configured to generate as output signals products of the plurality of first input signals and its respective one of the plurality of second input signals; and a plurality of dummy multiplier modules for receiving the plurality of second input signals, each dummy multiplier module corresponding to a respective one of the plurality of multiplier modules and configured to form products of the respective one of the plurality of second input signals of its corresponding multiplier module and the second input signals other than the respective one of the plurality of second input signals.