Abstract
Operational amplifiers used in voltage follower, switched-capacitor, digital to analog converter is the basic blocks of analog systems. An operational amplifier design depends on the supply voltage and gain. The digital circuits greatly benefits from reduction of size and supply voltage while analog circuits depend on the parameters like offset, noise, gain, power consumption and bandwidth for greater benefits. Current mode circuits have high slew rate and wider bandwidth. Therefore, current mode circuits are more preferable than voltage mode circuits as it has a high slew rate and wider bandwidth. The dynamic range of low power operational amplifier is limited by small currents. One of the techniques to make Op-amp very efficient with low power supply voltage without degrading the characteristics use of effective current mirrors. In this paper the various Operational amplifiers with different current mirror loads are analysed and compared. The parameters of Operational amplifier are considered and compared in cadence virtuoso using 180nm technology.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
