A New Low-Voltage, Low-Power and High-Slew Rate CMOS Unity-Gain Buffer

Class-ab circuits, which are capable of dealing with currents several orders ofmagnitude larger than their quiescent current, are good candidates for low-power and highslew-rate analog design. this paper presents a novel topology of a class ab flippedvoltage follower (fvf) that has better slew rate and the same power consumption as theconventional class-ab fvf buffer previously presented in literature. it is thus suitable forlow-voltage and low-power stages requiring low bias currents. these buffers have beensimulated using 0.5 ?m cmos technology models provided by ibm. the buffer consumes16 ?a from a 0.9 v supply and has a bandwidth of 52 mhz with an 18 pf load. it has aslew rate of 10.3 v/?s and power consumption of 36 ?w.