DNx-AI-218 – 8-Channel, 24-bit, fully isolated A/D board

8-Channel, 24-bit, fully isolated A/D board


The DNx-AI-218 is a 8-channel fully isolated, simultaneously sampling A/D board. It features 24-bit resolution and 7 software selectable input ranges. Each channel also includes an isolated logic-level DIO bit.



  • 8 differential analog input channels
  • 350 Vrms isolation (channel to channel and channel to chassis)
  • Simultaneous sampling (one A/D converter per channel)
  • Built-in anti-aliasing filters (@ 48% of sample rate)
  • 120 kHz per channel sample rate (480 kHz board max)
  • 24-bit resolution
  • +/-10 VDC Inputs
  • Gains – 1, 2, 4, 8, 16, 32 and 64

An A/D per channel configuration allows channels to be sampled simultaneously at rates up to 120 kS/s each (480 kS/s max aggregate entire board). The A/D per channel configuration virtually eliminates input cross talk and channel settling time issues even when connected to high impedance signal sources.
Each channel is electrically isolated from all other channels as well as from the Cube or RACKtangle chassis. In addition to the isolation, each input is overvoltage protected up to ±40 V (power on or off). The inputs go into a high impedance mode when power is removed making the AI-218 ideal for use in redundant measurement/control applications.

I/O Chassis
Model No.


RACKtangle ®


For DAQ chassis options, click here.