DSP Filter

High-sensitivity sensors are used to facilitate dynamic and precision acquisition of measurement data. Input channels on test benches, measurement technology or automation technology are often unable to carry out the required sampling rates, nor do they have filters to suppress interference signals or alias effects prior to digitizing signals. Both of the modules CW-350 and CW-351 make it possible to implement pre-filtering, signal conditioning and signal calculations with maximum flexibility.

A high-performance signal processor (DSP) makes it possible to implement variable low pass, high pass and bandpass filters, a wide range of different transfer functions and filter characteristics and filter orders.

For the purpose of maximum flexibility the processed data can either be output analog or via the CAN bus. Furthermore, it is possible to set predefined filters dynamically and according to the operating status via the CAN bus.


  • Prefilter analog signals on DSPs
  • DSP-based signal conditioning
  • 14 bit analog/digital converter
  • 12 bit analog/digital converter
  • Customer-specific filter processes configurable
  • External triggering of measurements
  • Suitable for prefiltering in HiL test benches
  • Ideal as anti-aliasing filter or for signal conditioning


Technical Data CW - 350 / CW-351


  CW-350 CW-351
Number of channels: 16 16
Voltage range: ± 15 VDC  0 VDC to 28 VDC
Resolution: 14 bit 14 bit


  CW-350 CW-351
Number: 16 16
Voltage range: ± 9,5 VDC 0 VDC to 40 VDC
Resolution: 12 bit 12 bit


  CW-350 CW-351
Number: 1 1
Type: ISO 11898-2 (highspeed) CAN-protocol version 2.0 A and 2.0 B, supports  SAE J1939 (29-bit-identifier)
Data rate: 50, 100, 125, 250, 500, 800 and 1000 kbit/s
Termination: 120 Ohm, optional activation via jumper

Power supply

  CW-350 CW-351
Supply voltage: 10,5 VDC to 18 VDC 44 VDC to 48 VDC
Current consumption: 160 mA at 12 VDC 170 mA at 48 VDC

Environmental conditions

  CW-350 CW-351
Temperature range operation: -20 °C to +70 °C -20 °C to +70 °C
Temperature range storage: -20 °C to +85 °C -20 °C to +85 °C
Relative humidity: 35 % to 85 % non-condensing 35 % to 85 % non-condensing

General Information

  CW-350 CW-351
Housing: Mounting for 45 mm DIN - top-hat rail
Dimensions (LxWxH): 122 mm x 110 mm x 15 mm 210 mm x 110 mm x 15 mm
Weight: 124 g 229 g


Datasheet CW-350 / 351

Download (PDF)

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