Abstract
The ultrastable low-noise current amplifier (ULCA) was developed as an advanced instrument for the improved measurement of currents generated by single-electron transport (SET) devices. It was optimized for direct currents in the picoampere range, and achieves an uncertainty of about 0.1 parts per million for a current of 100 pA, typically generated by SET pumps. This paper summarizes our efforts in extending the ULCA's current range and minimizing the measurement uncertainty over a wide range. The final goal is to obtain a universal instrument for measuring and generating direct currents between about 1 fA and 1 μA with unmatched accuracy.
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.
