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MAX9920 Production
The MAX9918/MAX9919/MAX9920 are single-supply, high-accuracy current-sense amplifiers with a high input common-mode range that extends from -20V to +75V...
Datasheet
MAX9920 on Analog.com

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Gain Error

		
	
				

			

									
					    oldee
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on May 6, 2024 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Datasheet/Specs
    
    		        		            		    
    Product Number:  MAX9920  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hi All
    

    

    What is the error in gain and offset due to external resistors R at the input. Is there an equation which would allow it to be calculated. These resistors are part of a RC filter network.
    

    

    Regards
    

    ik
    
			
    
			
									
		                             
                        

    
    
                                            
                 Datasheet/Specs
                
                                                    
                 Specialty Amplifiers
                
                                                    
                 MAX9920
                
                                                    
                 Current Sense Amplifiers
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			


				
	









	
      
	

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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on May 8, 2024 3:12 AM
            
            
						
			            		
      
		
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      Hi 
      

      The MAX9920 typically has a Vsense of 200mV. It is necessary to confirm that the type Vsense is available at the input of MAX9920. Vos/Full Scale input would be the percentage of inaccuracy caused by the offset. Under the scenario that Vref=0V, the Gain Error across temperature specified in the datasheet would reach a maximum of 1.7%. Where your question was answered by me ?
      

      

      Regards
      

      PVP
      

      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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