A Programmable-Bandwidth Amplifier for Ultra-Low-Power Switched-Capacitor Application
2011 (English)In: IEEE European Conference on Circuit Theory and Design (ECCTD), IEEE conference proceedings, 2011, 761-764 p.Conference paper (Refereed)
This paper presents a novel approach to design a programmable-bandwidth amplifier intended for ultra-low-power switched-capacitor application. The proposed topology is based on the common load-compensated two-stage OTA. The GBW is enhanced by replicating the second amplifying stage. Implemented in a 65-nm CMOS technology and approved by the post-layout simulation, the GBW is programmed in three operation modes (400, 700, and 900 kHz), while 52-dB DC gain is preserved in a 5-pF load. The OTA consumes 275-nW static power in a 400 kHz unity-gain frequency and 375-nW static power in a 900 kHz unity-gain frequency from 0.9-V supply.
Place, publisher, year, edition, pages
IEEE conference proceedings, 2011. 761-764 p.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-73029DOI: 10.1109/ECCTD.2011.6043849ISBN: 978-1-4577-0617-2 (print)ISBN: 978-1-4577-0616-5 (online)OAI: oai:DiVA.org:liu-73029DiVA: diva2:464987
20th European Conference on Circuit Theory and Design, Linköping, 29-31 August, Linköping, Sweden