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IO113-20: 20-bit Analog Output Module

20-bit analog module with 8 single-ended or 3-wire differential output channels and Simulink® driver blocks

The IO113-20 I/O module is a precision 20-bit analog module with eight simultaneously clocked output channels and Simulink® driver blocks. 

The outputs can be clocked at rates of up to 500 KSPS per channel and are supported by a 256K-Sample FIFO data buffer. Both continuous and burst clocking modes are supported, and voltage ranges are software-selectable as ±10 V and ±5 V or ±5 V and ±2.5 V (See technical specifications).  

Each analog output channel implements a weighted-DAC R-2R configuration, which has no minimum clocking rate and  decreases latency.  
The outputs can be software-configured either for single-ended operation or for 3-wire differential operation. 

On-demand autocalibration determines and applies error correction for all output channels, and the eight bidirectional digital I/O lines are programmable as inputs or outputs. 

Key Features

  • 8 single-ended channels or 3-wire differential channels, with a dedicated D/A converter per channel
  • 20-bit resolution
  • 8 μs settling time per channel 
  • Voltage ranges: software-selectable ±10 V and ±5 V or ±5 V and ±2.5 V (See Technical Specifications)
  • Independent 256K-sample output FIFO buffer 
  • Autocalibration
  • Clocking from either external or internal sample rate generator 
  • Remote ground sensing to minimize single-ended errors
Form factor PCI Express Short-Card 
Power requirements 9.4 W typical, 11 W maximum 
Connectors 68-Pin female SCSI3 
Operating temperature 0 to 70 °C (extended temperature option: -40 to +80 °C) 
Relative humidity 0 to 95 %, non-condensing
Analog outputs  
Number of outputs  8 single-ended or 3-wire differential analog outputs 
Dedicated D/A converter per channel 
D/A resolution  20 bit
Settling time 8 µs to 0.1 percent of step, typical with half-scale step 
Voltage ranges Option A: ±5 V and ±2.5 V (software-selectable) 
Option B: ±10 V and ±5 V (software-selectable) 
Output load Zero to ±5 mA per channel 
Output protection Withstands sustained short-circuiting to ground 
Integral nonlinearity ±0.002 % FSR 
Differential nonlinearity ±0.0005 % FSR 
Digital I/O  
Number of I/O lines 8 bidirectional digital TTL I/O lines 
Configuration 2 groups of 4 I/O lines, configurable as inputs or outputs 
Maximum input loading 0.2 mA (as current source) 
Maximum output loading 8 mA (source or sink) 
Item ID Product Name Components



  • 1x IO113-20
    • Option A ±5 V and ±2.5 V 
    • Option B ±10 V and ±5 V 
  • 1x 68-Pin Male SCSI3 to 68-pin male MDR Cable (6 ft/1.82 m)
  • 1x 68-Pin Female MDR Terminal board
  • Driver block library for Simulink® Real-Time™
  • Comprehensive documentation and Simulink® example models


IO113-ExtTemp  Increases the temperature range of the IO113-20 from 0 to +70 °C to -40 °C to +80 °C
Optional Accessories
20113M IO113-BNC-Panel 2U aluminum BNC panel for the IO113-20 I/O module providing a total of 16 BNC connectors to access 8 differential analog outputs, and 8 BNC connectors to access 8 digital TTL I/O lines 
20113N IO113-BNC-Box  Breakout BNC box for the IO113-20 I/O module providing a total of 16 BNC connectors to access 8 differential analog outputs, and 8 BNC connectors to access 8 digital TTL I/O lines 

Key to X in Item ID
Please replace the X with the code number of the specific target machine for the I/O module installation:

  • 6 = Performance real-time target machine

Pricing information
We don't publish pricing information on our website. Upon request by e-mail or phone we can provide a complete price list covering our entire product portfolio in various currencies. We recommend that you get in touch with us to discuss your specific needs. We can then quickly provide you with a tailored quotation including technical and pricing information.


Included in the Delivery


Common Applications

Supported target machines


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