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ADA4522 USE OF LARGE SOURCE RESISTANCE



		

			

									
					    Mochi
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 17, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  ADA4522 
    
    		        		    		    	
			
    Hello
    In the "USE OF LARGE SOURCE RESISTANCE" chapter of the ADA4522 datasheet, it states "When the ADA4522-1/ADA4522-2/ADA4522-4 are configured in a unity-gain follower configuration with a large source resistance and slow power supply ramp rate, The amplifier output may rail to the positive supply."
    How much should I consider for the ramp rate?
    

    Best regards
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		






		

			
    
			
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      •  Analog Employees  
      
				
						
						                        
                                                
                        
                                                	 Nov 24, 2022 
						
										
						
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      Hi   san,
      

      Power up positive supply first or at the same time as negative supply AND slew rate faster than 2.2V/ms.
      

      This was based on the previous bench test that was done on this device.
      

      Regards,
      

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