Frequency dependent current noise in ULCA variants

A paper on the noise optimised version of the Ultrastable Low Current Amplifier, developed by PTB has been selected as an editors pick for the journal ‘Review of Scientific Instruments’. Review of Scientific Instruments publishes novel advancements in scientific instrumentation, apparatuses, techniques of experimental measurement, and related mathematical analysis. The paper describes the process of selection of critical components in this extremely stable current amplifier such that the input current noise can be reduced without sacrificing the stability of the transresistance/gain.

Noise-optimized ultrastable low-noise current amplifier
C. Krause, D. Drung, M. Götz, and H. Scherer
Review of Scientific Instruments 90, 014706 (2019);,  

UPDATE: This has now been identified as a ‘most read’ editors pick.