Design Of Low 1/F Noise Operational Amplifier Cell Using Chopper Stabilization Technique

Eritha, Fadila Norasarin (2017) Design Of Low 1/F Noise Operational Amplifier Cell Using Chopper Stabilization Technique. Magister thesis, Universitas Brawijaya.

Abstract

Teknik stabilisasi chopper dapat digunakan secara luas untuk input diferensial dan penguat keluaran diferensial dan dapat diimplementasikan sakelar perajang bolak-balik dari amplifier. Sebenarnya, penguat instrumentasi dengan teknik stabilisasi chopper adalah dirancang dan diimplementasikan di laboratorium kami. Dalam hal ini, stabilisasi helikopter Teknik ini digunakan untuk blok pertama hanya karena output dari blok kedua adalah bentuk ujung tunggal. Oleh karena itu, kebisingan 1/f yang dihasilkan di blok kedua tidak dapat dihilangkan dan diamati pada hasil akhir.

English Abstract

Chopper stabilization technique can be widely employed for differential-input and differential-output amplifiers and can be implemented chopper switches back and forth of amplifiers. Actually, instrumentation amplifiers with chopper stabilization technique were designed and implemented in our laboratory. In this case, the chopper stabilization technique was employed for the first block only because the output of the second block is single ended form. Therefore, 1/f noise generated in the second block could not be removed and was observed at the final output. In this master thesis, the low 1/f noise operational amplifier cell with differential-input and single-ended-output using chopper stabilization technique is presented. Especially, I focus on the symmetric property of the output cascade structure in the folded cascade operational amplifier, new chopper stabilization technique is applied to folded cascade based operational amplifier. The proposed circuit was designed by Phenitec Semiconductor 3-Metal 0.6 μm CMOS process and evaluated by using HSPICE. According to the simulation results, I could confirm the proposed operational amplifier operates well. It has stable response (58.018o of phase margin) and high gain (126.56 dB). Moreover, 1/f noise (as representation of inside noise of operational amplifier) can be separated with input signal, and then it is removed perfectly at the output node. Furthermore, the proposed circuit is applied into inverting amplifier circuit and instrumentation amplifier for its application examples. These circuits were also evaluated by HSPICE. I could confirm that the application circuits also operated well as theory

Other obstract

-

Item Type:	Thesis (Magister)
Identification Number:	TES/621.381 535/ERI/d/2019/041904692
Subjects:	600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.38 Electronics, communications engineering > 621.381 Electronics > 621.381 5 Components and circuits > 621.381 53 Printed circuits and circuits for specific functions > 621.381 535 Amplifiers and feedback circuits
Divisions:	S2/S3 > Magister Teknik Elektro, Fakultas Teknik
Depositing User:	Endang Susworini
Date Deposited:	02 Aug 2022 07:36
Last Modified:	02 Aug 2022 07:36
URI:	http://repository.ub.ac.id/id/eprint/192960

Text FADILA NORASARIN ERITHA.pdf Download (3MB)

Actions (login required)

View Item