Distortion analysis of integrated analog multipliers: DC versus AC approaches

This work presents a theoretical comparison between three distinct criteria for evaluating distortion of analog multipliers: the two dimensional integral nonlinear function and the double input total harmonic distortion, both proposed by us, and the conventional single input total harmonic distortion. DC measurements have been accomplished over commercially available devices in order to identify difficulties and advantages implied in the methodology for determining the two dimensional integral nonlinear function.