SENSITIVITY ANALYSIS OF SWITCHED CAPACITOR CIRCUITS.

Formulations for the common biquadratic sensitivities for certain types of SC filters are given which only require derivation of the transfer function coefficient sensitivities. Similar expressions are derived for the third order case. This eliminates the need for algebraic factoring of the third order transfer function which may not be possible. A bandpass ladder circuit of a new SC circuit, a bridged twin T (BTT) bandpass circuit, are presented as examples to illustrate the method. This method provides a simple procedure for computing these sensitivities.