Abstract
Most conventional CMOS technologies possess the so-called zero-temperature coefficient (ZTC) operating point where the transistor’s drain current becomes nearly independent of temperature due to the mutual temperature cancellation of threshold voltage and carrier mobility. This paper discusses how this ZTC point can be exploited in the design of current and voltage references with low supply voltages. Besides a theoretical overview regarding the ZTC behavior, a current reference in a standard 0.25- $\mu \text{m}$ CMOS technology operable from 1.3 V is presented. To further explore the possibilities of this approach, a voltage reference with a nominal supply voltage of just 0.5 V is designed and fabricated in a 130-nm technology. Measurement results are given for both circuits.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: IEEE Transactions on Circuits and Systems I: Regular Papers
Disclaimer: 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.