Our BS/BSA series multichannel supplies provide precise and low noise DC voltages up to +/-50 V on a ppm level of stability.
A short response time of a few milliseconds and a high stability allow for
✔ fast and precise qubit biasing in quantum computing
✔ precision experiments with ion traps
✔ reliable usage in source-meter applications with automatic test equipment (ATE)
Key Features
- voltage range bipolar:
-0.1 V .. +0.1 V up to -50 V .. +50 V - number of channels:
2 up to 16 (32 channels in preparation, cf. MS preview below) - programming resolution:
16 bit (model BS) or 19/20 bit (model BSA) - absolute accuracy:
better then 250 ppm - short term fluctuations as root mean square values (rms):
0.3 ppm in 1 min / 0.8 ppm in 1 hour / 2.6 ppm in 24 hours
Tips and tricks for BS/BSA devices
- Improve response time and communication latency of the device
Try setting the latency timer of USB driver to 1 ms (default: 16 ms). See these instructions (pdf).
BS/BSA in research publications
The BS/BSA series appears in published setups across very different fields — Penning-trap mass spectrometry, trapped-ion quantum computing, electron optics and semiconductor research. A selection:
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M. V. Adelmark et al., “Fabrication and characterization of an adaptive thin-film electrostatic phase plate”, Physical Review Applied 25, 054007 (2026). Channels driven by a BS 1-10-10, controlled through the software supplied with the device.
DOI:10.1103/l2fs-ctzq -
D. Ray et al., “Phase-Imaging Ion-Cyclotron-Resonance mass spectrometry with the Canadian Penning Trap at CARIBU”, Nuclear Instruments and Methods A 1076, 170433 (2025). A 4-channel 14 V BS series supply chosen for its extremely low temperature dependency.
DOI:10.1016/j.nima.2025.170433 -
Y. Liu et al., “Minimization of the micromotion of trapped ions with artificial neural networks”, Applied Physics Letters 119, 134002 (2021). Compensation voltages set by a programmable BS1-16-14.
DOI:10.1063/5.0062508 -
C. L. Watts et al., “Light soaking in metal halide perovskites studied via steady-state microwave conductivity”, Communications Physics 3, 73 (2020). Resonator tuning controlled by a BSA-series voltage source.
DOI:10.1038/s42005-020-0350-2 -
M. J. Gutiérrez et al., “The TRAPSENSOR facility: an open-ring 7 tesla Penning trap for laser-based precision experiments”, New Journal of Physics 21, 023023 (2019). A BS1-8 delivering signals specified to ±15.000(1) V.
DOI:10.1088/1367-2630/aafa45
Preview: MS Series – Ultra High Stability Current Source (on request)
Our new modular MS series adds a high-precision multichannel current source to our product range, designed specifically for superconducting qubit biasing and cryogenic electronics. It had been developed for the qBriqs quantum technology project.
- 32 fully galvanically isolated channels — no common ground, minimal interference
- 20-bit resolution over an output range of 0 to 10 mA
- Ultra-stable outputs — typical short-term fluctuation below 1 ppm rms, temperature drift ~5 ppm/K
- Response time of a few milliseconds, suited for fast qubit biasing
Each channel is completely isolated from all others (typically 40 MOhm between channels), reliably eliminating ground loops and improving coherence times in quantum computing setups. Control is via USB using simple ASCII commands, compatible with Python, C++, LabVIEW and others.
