On the prediction of transmission errors of MOSFET switches

A simple formula is presented for the impedance error of a MOSFET-resistor transmission gate. Using this formula, closed-form expressions are derived for the output products resulting from switching sinusoidal input signals. The formula is accurate over a wide range of input signal levels. The results obtained are qualitatively in agreement with those reported by Corti (1986). The extension of the analysis is presented here to accommodate multitone input signals is mathematically straightforward.<
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