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ADM3055E Production
The ADM3055E/ADM3057E are 5 kV rms and 3 kV rms isolated controller area network (CAN) physical layer transceivers with integrated isolated dc-to-dc converters...
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ADM3055E on Analog.com

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ADM3055E with dual power supplies



		

			

									
					    Kalexx
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Aug 27, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hello,
    

    

    I would like to know whether an ADM3055E can be used without using the internal isolated DCDC converter which allows operation with a single 5V power supply, and instead use 3V3 supply on the Bus side (VCC + VIO), and an external supply (isolated from the first) on the other side of the transceiver (VISOIN pin)?
    

    If so, should I leave VISOOUT floating? What would be the requirements for the input supply on VISOIN pin?
    

    

    Thanks
    

    Regards, 
    

    Kalexx
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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													+1
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Aug 27, 2021 9:56 PM
            
            
					
      
	
      

		
		
      
					
      Hi Kalexx, 
      

      The dc/dc converter is independant, and it would be possible to power only the VIO and VISOIN pins for a fully functional isolated transceiver. The VISOIN pin needs a 5V supply. 
      

      It may make more sense to use the ADM3056E though. That is the same signal isolation and transceiver. The difference is the ADM3056E doesn't have the integrated dc/dc converter. 
      

      Regaqrds,
      

      Jason
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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													+1
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Aug 27, 2021 9:56 PM
            
            
					
      
	
      

		
		
      
					
      Hi Kalexx, 
      

      The dc/dc converter is independant, and it would be possible to power only the VIO and VISOIN pins for a fully functional isolated transceiver. The VISOIN pin needs a 5V supply. 
      

      It may make more sense to use the ADM3056E though. That is the same signal isolation and transceiver. The difference is the ADM3056E doesn't have the integrated dc/dc converter. 
      

      Regaqrds,
      

      Jason
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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