PXIe-4133 Block Diagrams

The following diagram illustrates the PXIe-4133 architecture.

Figure 1. PXIe-4133 Block Diagram


Note For simplicity, the block diagram illustrates a single measurement channel. The PXIe-4133 provides two measurement channels.
Note Each measurement channel requires two cable connections. Refer to the PXIe-4133 front panel to identify connectors for each channel.

The following diagrams show the PXIe-4133 internal architecture when performing contact check.

Figure 2. Contact Check Block Diagram
Figure 3. Low Voltage Contact Check Block Diagram

Device Capabilities

The PXIe-4133 is intended to test both forward and reverse bias characteristics of diodes. The following tables describe the basic capabilities in each mode of operation.

  • Pulsed Current and Voltage Measurement—The PXIe-4133 outputs sequences of current pulses, and returns current and voltage measurements for the diode under test.

    Current Ranges

    10 A, 2.5 A, 0.5 A, 0.1 A

    Voltage Range

    15 V

    Pulse Width

    2.5 µs to 655 µs (subject to current amplitude and duty cycle limits)

  • Reverse Current Measurement—The PXIe-4133 outputs a negative voltage to reverse bias the diode under test, and returns measurements of the applied voltage and leakage current through the diode.

    Current Ranges

    100 µA, 10 µA, 1 µA

    Voltage Range

    100 V

    Pulse Width

    ≤ 524 ms

  • Reverse Voltage Measurement—The PXIe-4133 outputs a negative current to reverse bias the diode under test, and returns a measurement of the breakdown voltage across the diode.

    Current Range

    10 µA

    Voltage Range

    100 V

    Pulse Width

    ≤ 524 ms

    • Supported Measurement Modes

    The PXIe-4133 supports the following measurement modes for all measurement operations:

  • Single Point per Pulse Mode—Acquired samples are averaged during the specified measurement aperture and a single averaged measurement is returned for each pulse. This mode is also referred to as average point per pulse mode or simply as average mode.
  • Waveform Mode—A waveform of samples acquired at 2 MS/s during the specified measurement aperture are returned for each pulse.