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A 0.9-V 0.5-μA rail-to-rail CMOS operational amplifier

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2 Author(s)
T. Stockstad ; Gain Technol., Phoenix, AZ, USA ; H. Yoshizawa

A 0.9-V 0.5-μA, rail-to-rail CMOS operational amplifier designed with weak inversion techniques is presented. Depletion-mode nMOS transistors buffer a bulk-driven pMOS differential pair to realize wide input dynamic range, while the output stage architecture provides symmetric rail-to-rail output drive through the use of a low-voltage translinear control circuit

Published in:

IEEE Journal of Solid-State Circuits  (Volume:37 ,  Issue: 3 )