• Replies 2 replies
  • Subscribers 1249 subscribers
  • Views 455 views
  • Users 0 members are here
Options
Similar Content 

        

            Post
             Go back to editing
        

    

    


    

    




















	
	
			
	
		
		
	
	
		

		
OpAmp (ADA4522) heating issue



		

			

									
					    Preethamshetty
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 3, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    I am using this ADA4522 as voltage follower which is supplied with +35V and -5V. When input signal with below specs is given the OpAmp is heating
    Input signal specs:
    20Vpk, 5us rise/fall time and 2us high/low time.
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



Parents
	
      
	

    • 
	
      






      
	
      
		
      
							
					
      
		
      
			
											
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Nov 4, 2021 12:52 AM
            
            
					
      
	
      

		
		
      
					
      Hi,
      

      Just a couple of questions about your setup:
      

      1. When you configured the ADA4522 in a voltage follower, is there a feedback resistor?
      

      2. Is there a source resistance or input resistance connected to the non-inverting input? If so, what's the value?
      

      Thanks,
      

      Donnie
      
			
      

		
		
		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
				
						
				
				
		
		
      
			
		
      
	
      

      

      • 

	

    • 
	
      






      
	
      
		
      
							
					
      
		
      
			
											
			
				
									
							        
			
			
			
        
            
			                            
                        
                on Nov 4, 2021 6:04 AM
            
            
												
						in reply to ADIApproved
					
									
        
	
        

		
		
        
					
        Hi Donnie,
        

        Thanks for the reply
        

        1. When you configured the ADA4522 in a voltage follower, is there a feedback resistor?
        

        No there is no feedback resistor
        

        2. Is there a source resistance or input resistance connected to the non-inverting input? If so, what's the value?
        

        Yes we have connected 2 Ohm resistor
        

        Thanks
        

        Preetham
        
			
        

		
		
		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
				
				
						
				
				
		
		
        
			
		
        
	
        

        

        • 

	
      



Reply

        


      • 
	
        






        
	
        
		
        
							
					
        
		
        
			
											
			
				
									
							        
			
			
			
          
            
			                            
                        
                on Nov 4, 2021 6:04 AM
            
            
												
						in reply to ADIApproved
					
									
          
	
          

		
		
          
					
          Hi Donnie,
          

          Thanks for the reply
          

          1. When you configured the ADA4522 in a voltage follower, is there a feedback resistor?
          

          No there is no feedback resistor
          

          2. Is there a source resistance or input resistance connected to the non-inverting input? If so, what's the value?
          

          Yes we have connected 2 Ohm resistor
          

          Thanks
          

          Preetham
          
			
          

		
		
		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
				
				
						
				
				
		
		
          
			
		
          
	
          

          

          • 


        


Children
	
        No Data