Switch Matrix Module

The Switch Matrix Module VT2832 allows arbitrary switching of currents in a matrix with eight columns and four rows. This can be used for example to connect different channels one by one to a measurement device.

Four additional channels can be switched directly which also leads to overall eight individually switchable channels. By the exclusive use of semiconductor switch elements, the number of switching cycles is practically unlimited.

Switch Matrix Module: VT2832

Characteristics: VT2832

Functions for Each Column

  • In each of the eight columns, the overall current and the voltage against AGND can be measured.
  • In addition to the individual switching of single matrix nodes, each column can be switched in PWM mode or with an encoding bitstream.
  • With this feature, for example periodic switching operations or bouncing contact simulations can be generated.
VT2832: detail view

Technical Data

  Switchable voltage -60 V … +60 V
  Current per path 16 A (up to 25A for max. 10ms)
  Contact resistance Max. 20 mΩ
  Signal transmission capability (square signal) Max. 50 kHz
Switching Function
  PWM frequence range 20 mHz … 10 kHz
  PWM Duty Cycle 1 … 99 %
  Length of bit stream 2 … 4096 bit
  Output of interval 50 … 65000 μs
  Frequency of generated PWM signal 500 ns
Voltage Measurement
  Accuracy (at 23 °C) ± (0,1% + 50 mV)
  A/D converter (per channel, internal) 16 Bit / 250 kSamples/s
Current Measurement
  Accuracy (at 23 °C) ± (0,1% + 50 mA)
  A/D converter (per channel, internal) 16 Bit / 250 kSamples/s
Basic Data
  Supply voltage (via backplane) 12 V ±10 %
  Power consumption (all relays off) Typ. 5,8 W
  Power consumption (8 nodes active) Typ. 6,2 W
  Temperature range 0 … 55 °C
  Dimensions (L x W x H) 300 x 173 x 36 mm
  Weight Approx. 418 g
  Calibration recommended every 12 months
  Accredited (pre/re) calibration according to ISO/IEC 17025:2017


Schematics of the Switch Matrix Module VT2832

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