Pole-zero analysis of multi-stage amplifiers: A tutorial overview

Author

Surkanti, Punith R. ; Garimella, Annajirao ; Furth, Paul M.

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

fYear

2011

fDate

7-10 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

Analyzing pole-zero locations of an amplifier is essential to 1) understand the characteristics of a circuit in the frequency domain, and 2) choose appropriate frequency compensation techniques to guarantee the stability of a circuit over a specified range of load resistance and capacitance. The objective of this paper is to provide tutorial treatment of the steps for analyzing poles and zeros in multi-stage amplifiers. These techniques can be equally applied for the analysis of power management circuits such as low-dropout voltage regulators (LDOs) and controllers for DC-DC converters.

Keywords

DC-DC power convertors; amplifiers; controllers; voltage regulators; DC-DC converters; controllers; frequency compensation techniques; frequency domain; load capacitance; load resistance; low-dropout voltage regulators; multi-stage amplifiers; pole-zero analysis; power management circuits; Equations; IP networks; Mathematical model; Poles and zeros; Radio access networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2011 IEEE 54th International Midwest Symposium on

Conference_Location

Seoul

ISSN

1548-3746

Print_ISBN

978-1-61284-856-3

Electronic_ISBN

1548-3746

Type

conf

DOI

10.1109/MWSCAS.2011.6026313

Filename

6026313