Nested feed-forward Gm-stage and ing resistor plus nested-Miller compensation for multistage amplifiers

Author

Peng, Xiaohong ; Sansen, Willy

Author_Institution

Katholieke Univ., Leuven, Belgium

fYear

2002

fDate

2002

Firstpage

329

Lastpage

332

Abstract

A new frequency-compensation topology (NGRNMC) is proposed, which improves the frequency characteristics and transient response of multistage amplifiers while minimizing the power consumption. Comparisons are made to demonstrate the advantages of the topology. A three-stage fully-differential NGRNMC amplifier, driving two 16 pF capacitors with 80 MHz GBW, is fabricated in a 0.35 μm CMOS process, confirming the experimental results. Criteria are proposed to accurately evaluate and compare amplifiers implemented in different operating conditions.

Keywords

CMOS analogue integrated circuits; compensation; differential amplifiers; feedback amplifiers; feedforward; frequency response; low-power electronics; transient response; 0.35 micron; 80 MHz; CMOS process; frequency characteristics; frequency-compensation topology; fully-differential amplifier; ing resistor; multistage amplifiers; nested feed-forward Gm-stage; nested-Miller compensation; power consumption; three-stage amplifier; transient response; Capacitors; Energy consumption; Feedforward systems; Frequency; Parasitic capacitance; Power amplifiers; Resistors; Stability; Topology; Transient response;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 2002. Proceedings of the IEEE 2002

Print_ISBN

0-7803-7250-6

Type

conf

DOI

10.1109/CICC.2002.1012832

Filename

1012832