Products Mentioned

OP41 Obsolete
The OP-41 JFET-input op amp features a 5pA max bias current with an open-loop gain of over 1 million. 77° of phase margin provides exceptional stability...
Datasheet
OP41 on Analog.com

AD549 Production
The AD549 is a monolithic electrometer operational amplifier with very low input bias current. Input offset voltage and input offset voltage drift are...
Datasheet
AD549 on Analog.com

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Replacement for OP41 EJ

		
	
				

			

									
					    timptf
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on May 24, 2023 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Datasheet/Specs
    
    		        		        		    		    
    
		    		    
		    			
    
			    
    Hello,
    

    i have a circuit board with a defect operational amplifier OP41 EJ. As a replacement part the AD549 is suggested on the website.
    

    Looking at the datasheets I am not quite sure this is correct. Is this really my best replacement option or is there another one?
    

    The application of the board is amplifying CCD signal for use in an ellipsometer.
    

    Thank you for your help.
    
			
    
			
									
		                             
                        

    
    
                                            
                 Operational Amplifiers (Op Amps)
                
                                                    
                 Datasheet/Specs
                
                                                    
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                 op41
                
                                                    
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