The LNHR DAC is a multi-channel voltage source with outstanding noise and resolution performance. It is designed to drive high-ohmic gates in fundamental physics experiments at cryogenic temperatures. For such experiments, ultra-stable DC bias voltages and high-resolution sweep-voltages with very low fluctuations are necessary. The output range of ±10 V, combined with the 24-bit resolution, allows adjusting the voltages with a step size of only 1.2 μV. The LNHR DAC can be used for DC-biasing, ramping/sweeping, and low-frequency waveform generation. The device is controlled locally by the rotary/push knob (encoder) or remotely using the TCP/IP or RS-232 interfaces. The LCD on the front panel displays the actual voltages.
The LNHR DAC is the ideal instrument for low-noise setups. The output ground is isolated from the case and the computer interface to avoid ground loops. The ground is thus provided by the shield of the cable coming from the experiment.
LNHR DACII key features
✧12 or 24 independent DAC channels
✧24-bit resolution
✧1.2 µV stepsize in the entire ±10 V output range
✧Integrated output noise 0.3 µVrms
✧Ultra-low drift 1 μV/ °C + 1.5 ppm/ °C
✧Floating output ground
✧Up to 10 mA output current
✧100 Hz and 100 kHz switchable bandwidth
✧AWG functionality
✧Adaptive fast scans

閘極漏電流量測盒 型號:SP1046
✧安裝在 LNHR DAC 輸出和樣品之間。
✧在執行實驗期間監控電流。
✧6 個並聯通道。
✧pA至 10μA範圍。
✧不會增加閘極電壓雜訊或降低穩定性。