Concepedia

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

T. Stockstad, Hirokazu Yoshizawa

IEEE Journal of Solid-State Circuits · 2002 · 124 citations · 10 references

DOI

Concepts

Abstract

A 0.9-V 0.5-/spl mu/A, 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.

References

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