The PCI-Express analog output board APCIe-3521 has 8/4 analog outputs, 16-bit, and 8 digital I/O, 24 V. The board is especially suited for applications in the sector of industrial process control, measurement technology and monitoring, for example for the control of chemical processes etc. in the harsh industrial environment. 64-bit drivers for Windows 8/7/Vista and drivers for Linux as well as programming samples are included. Real-time drivers for Linux and Windows are available on request.

Categories: , ,



Analog outputs

  • 8 or 4 analog outputs, optically isolated 500 V
  • Voltage or current outputs
  • 16-bit resolution (15-bit for 0-10 V)
  • Output ranges: ±10 V, 0-10 V (through software)
  • Output voltage after reset: 0 V
  • Each output has its own ground line (without optical isolation)
  • Output current ±5 mA max. for voltage outputs
  • Current outputs: 0-20 mA, min. load 10 Ω, max. load 560 Ω, at 20 mA
  • EMI filters


  • 4 dig. inputs including 1 interruptible input
  • 4 dig. outputs, 24 V, optically isolated

Timer / Watchdog

  • 2 timers of which 1 can be used as a watchdog

Safety features

  • Optical isolation 500 V min
  • Creeping distance IEC 61010-1
  • Protection against high-frequency EMI
  • Noise neutralisation of the PC supply


  • Industrial process control
  • Industrial measurement and monitoring
  • Control of chemical processes
  • Factory automation
  • Laboratory equipment, instrumentation


A CD-ROM with the following software and programming samples is supplied with the board.

Standard drivers for:

  • Linux
  • 32-bit drivers for Windows 8 / 7 / Vista / XP / 2000
  • Signed 64-bit drivers for Windows 8 / 7 / XP
  • Real-time use with Linux and Windows on request

Drivers and samples for the following compilers and software packages:

  • .NET
  • Microsoft VC++ • Borland C++
  • Visual Basic • Delphi
  • LabVIEW • LabWindows/CVI

ADDIPACK functions

  • Analog input • Analog output • Digital input
  • Digital output • Watchdog • Timer

On request:

Further operating systems, compilers and samples. Driver download: www.addi-data.com/downloads


Accessories for PC Boards

Find all the necessary and compatible accessories right here



For Windows For Linux



English version French version German version



English version


GREEN for the new products
ORANGE for products in end of life