AC current source CS580

DC

The Model CS580 Voltage Controlled Current Source creates new capabilities for researchers needing an ultra-low noise current source in a flexible, easy to use instrument. The CS580 is a natural companion with sensitive AC instruments such as lock-in amplifiers, providing an easy way of generating precision current directly from an AC or DC control voltage. The instrument sources and sinks current and has an adjustable compliance voltage of up to ±50 V, giving full "four-quadrant" performance. The CS580 is a welcome addition to any research lab studying semiconductors and transport phenomena, superconductivity, and nanotechnology, to name just a few. Ultra-Low Noise Design With up to ±50 V compliance voltage, the CS580 can source and sink precision AC and DC currents from 100 fA to 100 mA. The CS580's ultra-low noise design takes advantage of the best transistors, op-amps, and discrete components available combined with careful high impedance board layout to achieve the highest performance possible. The design even features linear power supplies rather than switching power supplies, so switching frequency interference can never be a problem. An actively driven guard provides the greatest bandwidth (up to 200 kHz) and lowest possible leakage current. There's also a buffered monitor output for high impedance voltage measurements. Click here for load configuration examples. CPU Clock Stopping Architecture Front-panel instrument configuration is managed by a microcontroller whose system clock only oscillates during the brief moments needed to change instrument settings. The drive electronics are completely static