A Low Voltage, Low Power Linear Pseudo Differential OTA for UHF Applications

Author

Kavala, Anil ; Kondekar, P.N.

Author_Institution

Sch. of Eng., Inf. & Commun. Univ. (ICU), Daejeon

fYear

2009

fDate

11-13 Feb. 2009

Firstpage

1

Lastpage

4

Abstract

In this paper, a 1.2 V novel pseudo differential, symmetric CMOS Operational Transconductance Amplifier (OTA) by using linearity improvement method is presented for Ultra-High Frequency (UHF) OTA-C filter applications. Simulation results show a unity gain bandwidth of 1.2 GHz and a transconductance of 2.15 mS with a good linearity of 7 dBm. The power consumption of the proposed OTA is 1.1 mW. The proposed OTA is used to design a 9^th - order 400 MHz chebyshev I low-pass filter by using 0.13 mum technology. This filter has an attenuation of 30 dB at 600 MHz and it consumes only 13 mW.

Keywords

CMOS analogue integrated circuits; Chebyshev filters; UHF filters; low-pass filters; operational amplifiers; CMOS operational transconductance amplifier; Chebyshev I low-pass filter; UHF applications; bandwidth 1.2 GHz; frequency 400 MHz; frequency 600 MHz; linear pseudo differential OTA; linearity improvement method; noise figure 30 dB; power 1.1 mW; power 13 mW; ultra-high frequency OTA-C filter; voltage 1.2 V; Attenuation; Bandwidth; Differential amplifiers; Energy consumption; Frequency; Linearity; Low pass filters; Low voltage; Operational amplifiers; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Pervasive Computing, 2009. ISWPC 2009. 4th International Symposium on

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4244-2965-3

Electronic_ISBN

978-1-4244-2966-0

Type

conf

DOI

10.1109/ISWPC.2009.4800553

Filename

4800553