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Rofs pin of AD5556



		

			

									
					    jfitzger131
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Sep 27, 2017 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Can the Rofs pin of the AD5556 be left unconnected when used in unipolar two-quadrant mode?  It appears that this would increase the feedback resistance from 5kΩ to 10kΩ.  Would this then also increase the output range from 0V - Vref to 0V to 2Vref?
    
 
    ad5556
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



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                on Oct 2, 2017 11:33 PM
            
            
					
        
	
        

		
		
        
					
        Hi Ivan,
        
 
        Thank you for responding.
        
 
        I'm going to connect the parallel data inputs to the databus of a non-volatile memory and modify the effective reference input to 'compensate' the contents of the NVM.  The effective reference input ended up being -1.5V, so I was hoping to find a way to 'boost' the output to increase the range without adding additional components and decreasing the reliability of the system.
        
 
        Thanks,
        
 
        James
        
			
        

		
		
		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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													0
							
			
				
									
							        
			
			
			
          
            
			                            
                        
                on Oct 2, 2017 11:33 PM
            
            
					
          
	
          

		
		
          
					
          Hi Ivan,
          
 
          Thank you for responding.
          
 
          I'm going to connect the parallel data inputs to the databus of a non-volatile memory and modify the effective reference input to 'compensate' the contents of the NVM.  The effective reference input ended up being -1.5V, so I was hoping to find a way to 'boost' the output to increase the range without adding additional components and decreasing the reliability of the system.
          
 
          Thanks,
          
 
          James
          
			
          

		
		
		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

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