Omega OMB-DAQBOARD-500 User Manual

 

 

A digital calibration method is used for both analog-to-digital and digital-to-analog 
conversions.  Please contact the factory should you believe your board to be in need 
of calibration. 

Function:  

High speed, 16 channel multiplexed 16 Bit Analog-to-Digital converter (ADC) 
with programmable gain, and 24 digital I/O lines for PC compatibles.  
DaqBoard/500 includes two Digital-to-Analog Converters (DAC0 and DAC1) 

 

 

Board 
Configuration:  

Completely software configurable: Host PC sets all Bus-related selections.  All data 
acquisition-related configuration is done by the user via software.  

 

Number of 
Inputs:  

16 Single-ended or 
  8 Differential programmable on per channel basis 

 

 

Resolution:  

155.070 µV/bit on 0 to 10 V range  

 

 

Acquisition 
Rate:  

 
200 kHz max 

 

 

A/D Full Scale 
Ranges:  

 
±10 V;  0 to 10 V  

 

 

Programmable 
Gain: 

 
x1, x2, x4, x8 

 

ADC 
Nonlinearity 
(Integral): 

± 1 LSB 

 

 

ADC 
Nonlinearity 
(Differential):  

 
± 3 LSB, no missing codes  

 

 

Input Ranges 

 

± 10 V 

± 0.008 V 

5µs  

 

± 5 V 

± 0.006 V 

5µs  

 

± 2.5 V 

± 0.004 V 

20µs  

 

 

± 1.25V 

± 0.0025V 

20µs  

 

0 to 10 V 

± 0.006 V 

5µs  

 

0 to 5 V 

± 0.004 V 

5µs  

 

0 to 2.5 V 

± 0.0025 V 

20µs  

 

 

0 to 1.25 V 

± 0.00125V 

20µs  

*Accuracy 1 year, 18 to 28°C, excluding noise. 
 

Gain Drift:  

± 7 ppm/ °C  

 

 

Zero Drift:  

± 2 ppm/ °C 

 

 
Note:  Specifications subject to change without notice.

DaqBoard/500 Series User’s Manual 

947294

 

Specifications      6-1