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Home > SIG-101


Signature Analyzer

Signature Analyzer Oscilloscope
Standard Function Generator
Arbitrary Waveform Generator
Network Analyzer
Noise Generator
Digital Inputs and Outputs
PWM Output
and more...

A signature analyzer, oscilloscope, waveform generator, and digital I/O port integrated into one small, low cost unit.

  • Calibrated signature analyzer
  • 2MS/s dual channel, 11-bit oscilloscope
  • 200 kHz DDS arbitrary waveform generator
  • Eight channel digital I/O
  • USB connectivity, universal AC adaptor included
  • Open source software for Windows, Linux and Mac
  • Desktop stand included.


    Click Here to Download the Datasheet


    Screen Shots


    Signature Analyzer

    Test Voltage
    +/-10V max
    12-bit continuous adjustment
    +/-10V max
    12-bit continuous adjustment
    Horizontal Votlage Display
    10mV/div to 5V/div
    9 ranges in 1-2-5 sequence
    +/-25V max
    Test Current
    +/-50mA max
    Horizontal Votlage Display
    100uA/div to 50mA/div
    7 ranges in 1-2-5 sequence
    Test Frequency
    0.2Hz to 200kHz
    Resolution 0.2Hz
    Accuracy 0.2%
    Resistance Measurement
    1 ohm to 80 kohm
    Capacitance Measurements
    100pF to 500mF
    Inductance Measurements
    4uH to 20H


    Maximum Sampling Rate
    Analog Bandwidth
    200 kHz
    Input Voltage Span
    10mV/div to 5V/div
    +/-25Vp-p with 1X Probe
    +/-250Vp-p with 10X Probe
    Input Ranges

    9 ranges in 1:2:5 sequence
    2Hardware Ranges

    Vertical Calibration
    Yes, software
    Input A/D Resolution
    11 bit
    Input Impedance
    Timebase Span
    500ns/div to 20s/div
    Timebase Ranges
    24 steps in 1:2:5 sequence
    Normal, Auto, Single Shot, External
    Trigger Polarity
    Rising and falling
    Trigger Level
    On-screen, cursor selectable
    Pre-Post Trigger Display
    On-screen, selectable
    Amplitude and timebase cursors
    Sample Memory
    1K points/channel
    Display refresh rate
    > 5 updates/second
    USB 1.0 or 2.0
    Additional Displays

    Strip Chart Mode
    X-Y Plot
    Spectrum Analysis (FFT)
    Waveform Math

    Waveform Generator

    Frequency Range
    0.2 Hz to 200 kHz
    Frequency Resolution
    0.2 Hz
    Output Amplitude
    Amplitude Control
    Offset Control
    Vertical Resolution
    8 bits
    (Independent of Amplitude)
    Output Impedance
    150 ohms
    Standard Waveforms
    Sine, Square, Triangle, Ramp, Noise
    Arbitrary Waveform
    8 bit resolution, vertical and horizontal

    Digital I/O

    8 bits, 5 volt, HCMOS
    8 bits, 3/5 volt, HCMOS
    Variable Frequency
    Variable Duty Cycle
    Trigger In
    Trigger Out

    Vector Network Analyzer/Bode Plotter

    The Bode Plotter is VNA (Vector Network Analyzer) software that operates the CircuitGear hardware over the frequency range 0.2 Hz to 200 kHz to measure amplitude and phase for circuit theory and filter design exercises.


    The oscilloscope, generator, and digital I/O are operated from a software GUI (graphic user interface) included with the hardware. The software is open-source and source code is included. The software is written in Tcl/Tk, a scripting language that is easy to learn yet powerful for creating GUIs. It runs under Windows, Linux, Unix, and Mac operating systems.

    CircuitGear is compatible with National Instruments LabVIEW, MATLAB, Visual Basic, and any application or programming language which can access serial ports. Syscomp provides LabVIEW example VIs that demonstrate how to control CircuitGear. Screen shots of the LabVIEW examples are shown below. The LabVIEW examples are available on the download page.

    System Requirements

    Windows XP/Windows Vista/Windows 7 32/64/Windows 8.X/Window 10
    Minimum 1024x768 screen resolution at 16 bit color depth
    USB Port

    Linux with kernel 2.4 or higher, X Windows
    USB Port

    Mac OS X 10.4 or higher, PowerPC or x86
    USB Port