Abstract
A CMOS current operational amplifier (COA) is exploited to obtain a voltage amplifier operating at 1 V and with an input bias voltage of 0.5 V. The COA employs a class AB input stage that enhances the slew-rate performance and provides accurate control of both the quiescent currents and the input bias voltage. It exhibits a 56 dB loop gain with a gain-bandwidth product of 18 MHz. Based on this COA, a 1-V voltage amplifier is implemented. It provides a constant closed-loop bandwidth of about 2 MHz and exhibits a THD better than -60 dB for a 1 MHz 600 mV/sub pp/ output signal.
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.
