SSI OE4201 Isolated Current Source 100kHz Bandwidth Voltage-controlled Current Source

Product Overview

    The OE4201 is a floating, isolated voltage-controlled current source that supplies current to other instruments. It offers two output gain ranges, 2 mA/V and 200 mA/V, with AC current frequencies from 1 Hz to 100 kHz. As a current source instrument, the OE4201 delivers high accuracy and excellent stability, with output essentially independent of load and external voltage variations, strong noise immunity, and fast response. It is well suited for use with sensitive AC instruments such as lock-in amplifiers, providing a simple way to generate precise currents from an AC voltage. The OE4201 uses a standard rack-mount chassis with a compact, clean, and rugged internal layout, smooth and reliable switching, and is easy to operate, adjust, and service.

Functional Block Diagram

Input

    Input voltage range        0.005Vrms-0.5Vrms

    Input frequency range        1 Hz-100 kHz

    Input impedance            50Ω

    Input peak voltage        ±0.707V max

Output

    Output mode            Single-ended

    Output current RMS      0.01 mA-100 mA

    Output load            0.1Ω-100Ω

    Rated output voltage        ≤1 Vrms

    Maximum output voltage        ±9 V (open circuit)

    Input-output gain       2mA/V or 200mA/V

Accuracy

Accuracy                 2% (typical)

                     5% (maximum)

Amplitude-frequency and phase-frequency characteristic curves