A fast negative impedance converter for JAWS load compensation
Jason Underwood, Stephen Pfeiffer, Geoffrey Palo
For accurate realization of the ac volt, the Josephson Arbitrary Waveform Synthesizer (JAWS) must not be overly loaded by the electrical network in which it is used. The interaction between the on-chip inductance and the stray capacitance in the network can yield significant errors. Such errors are compounded for low-impedance devices, such as thermal voltage converters and thermal transfer standards (TTS). This paper describes a negative impedance converter that has been designed to handle such loads up to 100 kHz. We discuss the motivation for the device, its design, and present some initial ac-ac difference measurements with a TTS.
2020 Conference on Precision Electromagnetic Measurements (CPEM)
, Pfeiffer, S.
and Palo, G.
A fast negative impedance converter for JAWS load compensation, 2020 Conference on Precision Electromagnetic Measurements (CPEM), Denver, CO, US, [online], https://doi.org/10.1109/CPEM49742.2020.9191932
(Accessed September 22, 2023)