A Novel Dynamic Current Boosting Technique for Enhancement of Settling Time and Elimination of Slewing of CMOS Amplifiers

Author

Mehra, Anu ; Gupta, Arpan ; Patil, Swapnil ; Mehra, Anu ; Sahoo, Sujit Kumar

Author_Institution

Birla Inst. of Technol. & Sci., Pilani, India

fYear

2009

fDate

27-28 Oct. 2009

Firstpage

115

Lastpage

117

Abstract

A very simple technique to achieve low settling time is presented. It is based on the combination of class AB differential input stages, local common-mode feedback (LCMFB), and clamping circuit which provides additional current boosting, keeping the gain-bandwidth product (GBW) nearly constant. The slew enhancement is provided by an auxiliary circuit which is activated only during transients. The design is based on the ldquoTSMC 180 nm CMOS technologyrdquo.

Keywords

CMOS analogue integrated circuits; amplifiers; nanoelectronics; CMOS amplifiers; CMOS technology; auxiliary circuit; clamping circuit; class AB differential input stages; dynamic current boosting technique; gain-bandwidth product; local common-mode feedback; slew enhancement; slewing; Boosting; CMOS technology; Capacitors; Circuit topology; Clamps; Communications technology; MOS devices; Operational amplifiers; Pulse amplifiers; Time sharing computer systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Recent Technologies in Communication and Computing, 2009. ARTCom '09. International Conference on

Conference_Location

Kottayam, Kerala

Print_ISBN

978-1-4244-5104-3

Electronic_ISBN

978-0-7695-3845-7

Type

conf

DOI

10.1109/ARTCom.2009.169

Filename

5328055