Title :
A 0.9-V 0.5-μA rail-to-rail CMOS operational amplifier
Author :
Stockstad, Troy ; Yoshizawa, Hirokazu
Author_Institution :
Gain Technol., Phoenix, AZ, USA
fDate :
3/1/2002 12:00:00 AM
Abstract :
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
Keywords :
CMOS analogue integrated circuits; low-power electronics; operational amplifiers; 0.5 muA; 0.9 V; bulk-driven pMOS differential pair; depletion-mode nMOS transistor buffer; input dynamic range; low-voltage translinear control circuit; output stage architecture; rail-to-rail CMOS operational amplifier; symmetric rail-to-rail output drive; weak inversion technique; Batteries; Circuits; Differential amplifiers; MOSFETs; Operational amplifiers; Rail to rail amplifiers; Rail to rail inputs; Rail to rail operation; Rail to rail outputs; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
