Reducing Multiplier Linearity Errors

Cross-Feed Reduces 2nd Harmonic Distortion and Feedthrough

In many transconductance-multiplier designs, the "X" feedthrough error has a pronounced quadratic component. That is, for Y = 0 and X swept over the range ±10V, a crossplot shows that the output, instead of being zero, is approximately equal to (A + BX + CX2). Read full article



Lewis Counts