A 0.8 v class-AB linear OTA using DTMOS for high-frequency applications

Suadet, Apirak; Thongleam, Thawatchai; Kanjanop, Arnon; Singhanath, Pratchayaporn; Hirunsing, Buncha; Chuenta, Weerasak; Kasemsuwan, Varakorn

doi:10.1109/ICMSAO.2011.5775478

A 0.8 v class-AB linear OTA using DTMOS for high-frequency applications

Author(s)

Suadet, Apirak

Thongleam, Thawatchai

Kanjanop, Arnon

Singhanath, Pratchayaporn

Hirunsing, Buncha

Chuenta, Weerasak

Kasemsuwan, Varakorn

Date Issued

July 1, 2011

Type

Conference Paper

DOI

10.1109/ICMSAO.2011.5775478

Abstract

This paper presents a 0.8 V class-AB linear operational transconductance amplifier (OTA) using DTMOS for high-frequency applications. The circuit employs positive feedback to enhance the input impedance, and feed-forward technique to suppress the common-mode gain. The circuit is designed using 0.18 μm CMOS technology under 0.8 V supply. The simulation results show rail-to-rail input/output swing, suppressed common-mode response, and good linearity (less than -48 dB with input 0.6 Vpp, 5 MHz). The power dissipation is 155 μW. © 2011 IEEE.

Citation

2011 4th International Conference on Modeling Simulation and Applied Optimization Icmsao 2011, 2011