High Resolution, Isolated Analog-to-Digital Converter Board


This product reached the end of its lifecycle (end-of-life) on December 4, 2005

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The VME-3126 is an 8- or 16-channel, high resolution, totally isolated ADC board. The inputs accept 2-wire isolated signals in the range of ± 50 mV to ± 10 V, and provide input-to-input and input-to-VME isolation. Each input is sampled and digitized by a dedicated 24-bit Analog-to-Digital Converter (ADC) per channel. APPLICATIONS Power plant monitoring Machine monitoring Data acquisition RTDs, strain gauges, and thermocouples

  • 8 or 16 isolated input channels with active guards
  • 16-bit data
  • 1,500 VDC (1,000 VAC) isolation, input-to-input and input-to-VMEbus
  • Digitizer per channel
  • Input ranges of ±50 mV to ±10 V, software-selectable on channel-by-channel basis
  • Software-controlled bandwidth, 0.05 to 26 Hz (6 pole low pass filters implemented with internal DSP)
  • DSP-based offset and gain correction in real-time
  • DSP supported E2PROM stores calibration coefficients (no trimpots)
  • Conversion rate of 100 SPS (samples per second) per channel
  • RTD excitation under software control (200 mA/400 mA per channel)
  • Open transducer detection under software control
  • Supported by Abaco Systems Embedded System's I/O controllers
  • Optional current termination resistors
  • Optional increased input range


16-bit ADC

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