B&B Electronics 4 Channel Input Buffer Board SDAIBB Manual De Usuario

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SDAIBB1300 Manual 
 
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 
Input Voltage Connections 
The SDAIBB can receive signals in the range of –0.15 to +5 VDC 
when set to unity gain, and –0.15 to +3.5 VDC when set to any other gain.  
Note: This voltage reading is taken from GND on the SDAIBB to 
Input+ and GND to Input- voltages.  It is not
 the differential voltage 
from Input- to Input+.
  Signals are brought into the buffer by terminal 
blocks or solder pads.  The terminal blocks are labeled Input+, Input-, 
GND, and Output Offset.  See Figures 3, 4, and 5 for typical input 
configurations.  The voltage that will be amplified is the reading taken from 
Input- to Input+.  GND is connected to the ground of the SDAIBB and is 
provided for making a common reference for the SDAIBB and the input 
device.  The Output Offset is an input that shifts the output of the SDAIBB.  
This feature is discussed further in Chapter 3, Output Offset. 
 
 
 
 
 
OUT
OFF
GND
IN+
IN-
 
Figure 3: Differential Signal with GND  
OUT
OFF
GND
IN+
IN-
S ig n a l
G N D
 
Figure 4: Single Ended Signal