Input switch configuration suitable for rail-to-rail operation of switched opamp circuits

Input switch configuration suitable for rail-to-rail operation of switched opamp circuits

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A switch configuration to be used at the input of switched opamp circuits is introduced. The circuit is an extension of the gate-source bootstrapping technique such that rail-to-rail operation of the input switch becomes possible. Simulations show the usefulness of the proposed circuit down to 0.9 V.


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      • A. Baschirotto , R. Castello . A 1 V 1.8-MHz CMOS switched-opamp SC filterwith rail-to-rail output swing. IEEE J. Solid-State Circuits , 12 , 1979 - 1986

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