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AD5933 Production
The AD5933 is a high precision impedance converter system solution that combines an on-board frequency generator with a 12-bit, 1 MSPS, analog-to-digital...
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AD5933 on Analog.com

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EVAL AD5933 EBZ



		

			

									
					    nazz3
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Mar 28, 2016 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Dear Sirs,
    
 
    I am using the EVAL AD5933 EBZ evaluation board with resonance PZT sensors.  I am having a problem with the resonance part in the graph as it is flattening.  Please find the graph as an example.
    
 
    Can you kindly tell me why and how can eliminate this problem?
    
 
    
 
    I thank you in advance.
    
 
    Best regards,
    
 
    Niki
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			








	
	
	
	



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                on Mar 29, 2016 7:11 AM
            
            
					
        
	
        

		
		
        
					
        Hi Miguel,
        
 
        Thank you for your email.
        
 
        The interested frequency is between 60 and 100 kHz.  The Rfb and Rcal are 2950 ohms.  The expected impedance is between 2000 and 10000 ohms.
        
 
        I thank you in advance.
        
 
        Best regards,
        
 
        Niki
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
				
				
						
				
				
		
		
        
			
		
        
	
        

        

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                on Mar 29, 2016 7:11 AM
            
            
					
          
	
          

		
		
          
					
          Hi Miguel,
          
 
          Thank you for your email.
          
 
          The interested frequency is between 60 and 100 kHz.  The Rfb and Rcal are 2950 ohms.  The expected impedance is between 2000 and 10000 ohms.
          
 
          I thank you in advance.
          
 
          Best regards,
          
 
          Niki
          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
				
				
						
				
				
		
		
          
			
		
          
	
          

          

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