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Question about AD8495



		

			

									
						Kazu
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Jan 31, 2018 
				
			
			
		


				
		

		    		    
		    
		    	
			
Hi All,

 
I have a question about the AD8495. Please take a look at the attachment.

 
I think it is not out of spec, but I would like to know the cause of these variation.

 
Regards,

 
Kazu

								


				
							QuestionaboutAD8495.pdf
					
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	

		
	











	

	

					



			








	
	
	
	



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                                 Analog Employees 
                                
                            
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                on Feb 14, 2018 2:53 AM
            
            
					
    
	
    

		
		
    
					
    Hi Kazu,
    
 
    I can give you the polynomial coefficients to calculate the expected output voltage of the AD8495 for different temperatures and give you an estimate of the expected error.  Can you tell me what kind of thermocouple/thermocouples you plan on using?  Also, what is the temperature range that you are trying measure?  From the first picture I can see the low end is about -25C and the high end is around 300C but I'd like to confirm.  Is your reference temperature going to be 32C?
    
 
    Regards,
    
 
    Jordyn
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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													0
							
			
				
									
							        
            
                                                                                                        
      
                            
    • 
                                 Analog Employees 
                                
                            
      • 
                        
     
                                                           			
			                            
                        
                on Feb 14, 2018 2:53 AM
            
            
					
    
	
    

		
		
    
					
    Hi Kazu,
    
 
    I can give you the polynomial coefficients to calculate the expected output voltage of the AD8495 for different temperatures and give you an estimate of the expected error.  Can you tell me what kind of thermocouple/thermocouples you plan on using?  Also, what is the temperature range that you are trying measure?  From the first picture I can see the low end is about -25C and the high end is around 300C but I'd like to confirm.  Is your reference temperature going to be 32C?
    
 
    Regards,
    
 
    Jordyn
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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