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ADUM1254 Recommended for New Designs
The ADuM1254 offers two bidirectional, open-drain channels for applications, such as I2C, that require data to be transmitted in both directions on the...
Datasheet
ADUM1254 on Analog.com

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					    Guillaumedu76
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 10, 2024 
				
			
			
		
    

				
		
    
		    		    
		    
		    		      		            		        
    Category: Datasheet/Specs
    
    		        		            		    
    Product Number:  ADUM1254  
    
    		        		    		    	
			
    Hello, I'm reading ADUM1254, an integrated circuit as i2c isolator. I don't understand levels obout High input, VIH1 (min to max) : 0.62 V max !?
    
									
			        
		
    

				
						
        

    
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jan 7, 2025 5:19 AM
            
            
					
      
	
      

		
		
      
					
      Hi,
      Sorry for the delay in replying, unfortunately the holiday period has slowed down our timing.
      

      The VIH1 parameter shown in the datasheet refers to the component's threshold to recognize an input as a high value. So, to ensure that a high value is read correctly by the device, you need to make sure that this input value is greater than VIH1 max, i.e. Vin > 0.62V.
      

      Please let me know if I understood correctly your question.
      

      

      I hope I was helpful!
      

      Kind Regards,
      Andrea
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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