Design of Two-Stage CMOS amplifier for quartz crystal resonator

Author

Taufik, M. Syamsi M. ; Nordin, A.N. ; Khan, Sharifullah ; Zainuddin, A. Anwar

Author_Institution

Dept. of Electr. & Comput. Eng., Int. Islamic Univ. Malaysia, Gombak, Malaysia

fYear

2013

fDate

25-27 Nov. 2013

Firstpage

1

Lastpage

4

Abstract

Quartz crystal oscillators is widely used in many types of electronics equipment for our daily life applications such as mobile communication, military, industrial measurement, an others due to its high stability clock sources. In this paper, a Two-Stage CMOS op-amp for a quartz crystal-based oscillator is presented. The design of two-stage CMOS op amp is critically discussed. Two-stage CMOS op amp is consist of two stages. Each stage can be designed with various amplifier topologies. The first stage is differential amplifier. The second stage of two-stage op amp is a common-source amplifier. The op amp achieves a gain of 6.134 dB at V_DD of 3.3 V and V_SS of -3.3 V. The two-stage CMOS op amp is combined with 10 MHz quartz crystal resonator to create an oscillator at the frequency of ~10MHz. The gain of 13.32dB is achieved. This oscillator is simulated using Cadence in MIMOS 0.35 um CMOS process.

Keywords

CMOS integrated circuits; crystal oscillators; differential amplifiers; operational amplifiers; CMOS process; common source amplifier; differential amplifier; electronics equipment; frequency 10 MHz; gain 13.32 dB; gain 6.134 dB; opamp; quartz crystal oscillators; quartz crystal resonator; size 0.35 mum; two stage CMOS amplifier; voltage 3.3 V; CMOS integrated circuits; Crystals; Gain; Operational amplifiers; Oscillators; Resonant frequency; Transistors; Cadence; Quartz crystal-based oscillator; Two-stage CMOS op-amp;

fLanguage

English

Publisher

ieee

Conference_Titel

Smart Instrumentation, Measurement and Applications (ICSIMA), 2013 IEEE International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4799-0842-4

Type

conf

DOI

10.1109/ICSIMA.2013.6717964

Filename

6717964