Transconductance CMOS inverter based AC coupling amplifier

Author

Barthelemy, Herve ; Meillere, Stephane ; Gaubert, Jean ; Kussener, Edith

Author_Institution

IM2NP, Univ. de Toulon, La Garde, France

fYear

2014

fDate

22-25 June 2014

Firstpage

9

Lastpage

12

Abstract

An AC-coupling technique based on the complementary MOS inverter is presented in this paper. The proposed technique employs a coupling capacitance, a reference inverter and two transistors in resistive mode of operation. As an application, a threes stage amplifier has been realized in 0.35μm CMOS process. Under 2.5V supply voltage, the amplifier features a 23.6dB measured voltage gain. At the same measurement condition, the total power consumption is lower than 295μW and the amplifier exhibits a total harmonic distortion of 3% when the peak-to-peak output voltage swing is 750mV.

Keywords

CMOS analogue integrated circuits; harmonic distortion; invertors; operational amplifiers; reference circuits; AC coupling amplifier; THD; complementary MOS inverter; gain 23.6 dB; reference inverter; resistive mode; size 0.35 mum; total harmonic distortion; transconductance CMOS inverter; voltage 2.5 V; voltage 750 mV; CMOS integrated circuits; Couplings; Equations; Inverters; Mathematical model; Transconductance; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

New Circuits and Systems Conference (NEWCAS), 2014 IEEE 12th International

Conference_Location

Trois-Rivieres, QC

Type

conf

DOI

10.1109/NEWCAS.2014.6933972

Filename

6933972