170 MHz GBW, two stage CMOS operational amplifier with high slew rate using 180 nm technology

Guruprasad, Kumara Shama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Operational amplifiers (Op-amp) are vital components of any analog IC, improving its performance has a significant effect on the entire design. Among different approaches to realize an Op-amp, a Two stage i.e differential amplifier followed by common source amplifier is simple, elegant and occupies less space. The proposed paper presents design of a Two Stage CMOS Operational amplifier, which operates at ±1.8V power supply using 180 nm CMOS technology. The unity-gain bandwidth of the amplifier is 170 MHz. The Op-amp is internally frequency compensated using a miller capacitor for better stability and phase lag created by the zero is resolved by adding a resistor in series with the miller capacitor. The proposed Op-amp provides a slew rate of 189V/μs during rising edge and 227V/μs during falling edge. The circuit offers a open loop Gain of 60 dB with 79 degree phase margin. The designed system is relatively suitable for low power and high frequency applications.

Original languageEnglish
Title of host publication12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control
Subtitle of host publication(E3-C3), INDICON 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467373999
DOIs
Publication statusPublished - 29-03-2016
Event12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control, INDICON 2015 - New Delhi, India
Duration: 17-12-201520-12-2015

Conference

Conference12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control, INDICON 2015
CountryIndia
CityNew Delhi
Period17-12-1520-12-15

Fingerprint

Operational amplifiers
Capacitors
Differential amplifiers
Resistors
Bandwidth
Networks (circuits)

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Guruprasad, & Shama, K. (2016). 170 MHz GBW, two stage CMOS operational amplifier with high slew rate using 180 nm technology. In 12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control: (E3-C3), INDICON 2015 [7443521] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INDICON.2015.7443521
Guruprasad, ; Shama, Kumara. / 170 MHz GBW, two stage CMOS operational amplifier with high slew rate using 180 nm technology. 12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control: (E3-C3), INDICON 2015. Institute of Electrical and Electronics Engineers Inc., 2016.
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Guruprasad, & Shama, K 2016, 170 MHz GBW, two stage CMOS operational amplifier with high slew rate using 180 nm technology. in 12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control: (E3-C3), INDICON 2015., 7443521, Institute of Electrical and Electronics Engineers Inc., 12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control, INDICON 2015, New Delhi, India, 17-12-15. https://doi.org/10.1109/INDICON.2015.7443521

170 MHz GBW, two stage CMOS operational amplifier with high slew rate using 180 nm technology. / Guruprasad, ; Shama, Kumara.

12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control: (E3-C3), INDICON 2015. Institute of Electrical and Electronics Engineers Inc., 2016. 7443521.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Guruprasad , Shama K. 170 MHz GBW, two stage CMOS operational amplifier with high slew rate using 180 nm technology. In 12th IEEE International Conference Electronics, Energy, Environment, Communication, Computer, Control: (E3-C3), INDICON 2015. Institute of Electrical and Electronics Engineers Inc. 2016. 7443521 https://doi.org/10.1109/INDICON.2015.7443521