Next generation Programmable Quantum Current Generator

This paper describes the latest improvements of the programmable quantum current generator (PQCG), which allow to get rid of the former 10
⁻⁷
relative corrections due to the resistance of the cable and extend the realization of the ampere over a wider current range, down to the µA range. Here we report on the first results of accuracy tests at 46 µA with a measurement uncertainty of one part in 10
⁸
.