product

SPI

  • Product
  • Quantum Control Stack, DC Source for Quantum Computing Applications
  • SPI

SPI

The SPI offers a modular system, with current and voltage modules. The SPI mainframe incorporates an advanced scheme to enable the best noise performance by connecting the signals, power, and grounding to the SPI Rack through the isolated and filtered units. They consist of gyrator filtered power supply, the C1b controller module, and the C2 SPI Isolator box.

The signals from the PC are connected to the C2 Isolator box which is galvanically isolated to block interference from the mains power. The gyrator-filtered power supply further avoids any additional ground loops.

  • SPI C1b Control Module

    The SPI C1b control module is designed for controlling up to 11 DC Current or DC Voltage source modules per rack. It receives the data signals from C2b and distributes it over the backplane.
    • C1b control module for signal distribution over all channels
    • C2 Isolator box galvanically isolates the system from the mains.
    • Gyrator circuitry prevents ~50 Hz interference and ground loops.

  • SPI D5a

    The D5a is the ideal DC source for quantum computing applications that require voltage biasing, specifically designed for the high demands of quantum processors.
    The output range of the 16 channels can be software selected between ±4V, ±2 V, +4 V and the 18 bit DAC resolution is maintained for all the ranges.
    This allows the user to choose the optimal range without sacrificing resolution. The outputs have a 550 Ω output impedance and a compliance current limit of ±7.3 mA.
    Extra care has been taken for ultra stability and extremely low noise performance together with its host rack, the SPI mainframe. Thanks to the galvanically-isolated control interface and isolated power supply, ground loops are avoided and interference (like 50 Hz) is minimized.
    The D5a DC voltage sources are controlled by the C1b module which is connected to the host pc via USB link and configured via our Python and QCoDeS drivers.

  • SPI S4G

    The S4g is the ideal DC source for quantum computing applications that require current biasing, specifically designed for the high demands of quantum processors.
    The output range of the 4 channels can be software selected between ±50 mA, ±25 mA, +50 mA and the 18 bit DAC resolution is maintained for all the ranges. This allows the user to choose the optimal range without sacrificing resolution.
    Extra care has been taken for ultra stability and extremely low noise performance together with its host rack, the SPI mainframe. Thanks to the galvanically-isolated control interface and isolated power supply, ground loops are avoided and interference (like 50 Hz) is minimized.
    The S4g DC current sources are controlled by the C1b module which is connected to the host pc via USB link and configured via our Python and QCoDeS drivers.
    The output can be monitored during operation, using the high-impedance voltage monitor outputs on the front panel, which route the DAC voltage sthrough a buffer. Each current output has a status LED. This LED lights up if the signal reaches the load voltage compliance limit of ±3.5 V.