• State Verified Answer
  • Replies 7 replies
  • Subscribers 2 subscribers
  • Views 1793 views
  • Users 0 members are here
Options
Similar Content 

        

            Post
             Go back to editing
        

    

    


    

    









		












	
	
			
	
			
		
	
	
		

		
ADA4092-4 differential input voltage



		

			

									
					    Terumasa
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Sep 12, 2014 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hello 
    
 

    Please let me know about overvoltage protection (OVP) of ADA4092-4.
    
 
    Datasheet P. 6 tabel5 absolute maximum rating says below.
    Input Voltage: Refer to the Input Overvoltage Protection section
    Differential Input Voltage: ±VSY
    
 
    What is the difference between input voltage and differential input voltage ?
    Our customer asks if above means that OVP does not work when differential signal input is used,
    because customer uses ADA4092-4 in below condition.
    
 
    Operated condition
    5V single supply
    Input signa: 2.5V +-2.5V differential input
    
 
    (-10~+10V overvoltage protection is needed )
    
 
    Regards,
    Terumasa
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



Parents
	
      
	

    • 
	
      



	
		
	
	



      
	
      
		
      
							
					
      
		
      
			
													0
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Sep 16, 2014 8:24 AM
            
            
					
      
	
      

		
		
      
					
      Hi Terumasa,
      
 

      The input voltage on the absolute maximum ratings table refers to the voltage on either one of the inputs ( +Vin, -Vin) while the Differential Input Voltage is the difference between the two inputs (+Vin minus the - Vin). Also according to the product owner of this part, The differential input voltage limits the maximum voltage between the two input pins so that they don't exceed the power rails. OVP does not apply to this. The OVP refers to the maximum voltage of any one input above the Vee supply.
      
 
      I am not totally sure if I understand your input signal but make sure that it is always within the input voltage range of the amplifier.
      
 
      We are also promoting this new tool for instrumentation amplifier. It may help you to see instantly your hexagonal plot (Common mode voltage vs Output voltage) which are dependent on your settings. It will also gives you a recommended Inamp products that are suited based on your requirements..
      
 
      Here is the link: Instrumentation Amplifier Tool - Common Mode vs. Output Voltage (Diamond Plot)
      
 
      We will appreciate if you could also give us feedbacks regarding this tool.
      
 
      Best regards,
      
 
      Emman
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

      • 

	
    



Reply

      


    • 
	
      



	
		
	
	



      
	
      
		
      
							
					
      
		
      
			
													0
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Sep 16, 2014 8:24 AM
            
            
					
      
	
      

		
		
      
					
      Hi Terumasa,
      
 

      The input voltage on the absolute maximum ratings table refers to the voltage on either one of the inputs ( +Vin, -Vin) while the Differential Input Voltage is the difference between the two inputs (+Vin minus the - Vin). Also according to the product owner of this part, The differential input voltage limits the maximum voltage between the two input pins so that they don't exceed the power rails. OVP does not apply to this. The OVP refers to the maximum voltage of any one input above the Vee supply.
      
 
      I am not totally sure if I understand your input signal but make sure that it is always within the input voltage range of the amplifier.
      
 
      We are also promoting this new tool for instrumentation amplifier. It may help you to see instantly your hexagonal plot (Common mode voltage vs Output voltage) which are dependent on your settings. It will also gives you a recommended Inamp products that are suited based on your requirements..
      
 
      Here is the link: Instrumentation Amplifier Tool - Common Mode vs. Output Voltage (Diamond Plot)
      
 
      We will appreciate if you could also give us feedbacks regarding this tool.
      
 
      Best regards,
      
 
      Emman
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

      • 


    


Children
	
    No Data