• State Verified Answer
  • Replies 2 replies
  • Subscribers 34 subscribers
  • Views 510 views
  • Users 0 members are here
Options
Related 

        

            Post
             Go back to editing
        

    

    


    

    









		











	
	
			
	
			
		
	
	
		

		
ADM3066E crossing A-B for inverted logic



		

			

									
						avihai
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Sep 16, 2020 
				
			
			
		


				
		

		    		    
		    
		    	
			
Hello,


I have 2 circuits which have the ADM3066E for Single-ended to RS485 translation.


I'd like to invert the logic so when circuit 1 transmits "high", circuit 2 will read "low", without changing the circuits.


Will it work well if I only connect the A pin of circuit to pin B on circuit 2 (and B to A in the same way)?




Thanks

								


				
				
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	










	

	

					



			








	
	
	
	



Parents
	
    
	

  • 
	
    



	
			
		
	



    
	
    
		
    
							
					
    
		
    
			
													+1
							
			
				
									
							        
            
                                                                                    
      
                            
    • 
                                 Analog Employees 
                                
                            
      • 
                        
     
                                                            			
			                            
                        
                on Sep 16, 2020 4:54 PM
            
            
					
    
	
    

		
		
    
					
    Hello, 
    

    Your solution will work well, 
    

    It's worth noting that when the circuit 1 is not transmitting, the A/B bus will be idle ( differential voltage Va-Vb = 0V ) and receiver circuit 2 will receive a logic 1. The receiver failsafe circuitry within the ADM3066E means the receiver outputs a logic 1 when Va-Vb = 0V
    

    


    
Circuit 1
Bus State
Circuit #2 (reversed)

    

    
Transmitting High (DI = DE = 1)
Bus High (VA - VB > 200mV)
Receiving Low (RO = 0)

    

    
Transmitting Low (DI = 0, DE = 1)
Bus Low (VA - VB < -200mV)
Receiving High (RO = 1)

    

    
Driver Disabled (DE = 0)
Bus idle (VA - VB = 0V)
Failsafe High (RO = 1)

    
    

    

    Regards,
    

    Neil 
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
						
				
				
		
		
    
			
		
    
	
    

    

    • 

	

  • 
	

    • 

	




Reply



Children
	
No Data