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AD7244 temporal +3Vout



		

			

									
					    ricky
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on May 16, 2014 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi All,
    
 
    One of my customers is planning to use AD7244 for his new design.
    
 
    In his prototype test, he found that the DAC output, Vout, goes +3V at power up.
    
 
    When he loads all zero data to the DAC, Vout goes 0V.
    
 
    In his application, this temporal +3V is problem.
    
 
    Are there any way to prevent this temporal +3V output at power-up?
    
 
     
    
 
    Best Regards,
    
 
    Ricky
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



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													0
							
			
				
									
							        
			
			
			
        
            
			                            
                        
                on Jun 11, 2014 4:29 PM
            
            
					
        
	
        

		
		
        
					
        Hi Mark,
        
 
        My customer would like to see the scope shot of VDD, /TCLKA, /TFSA, and VOUTA with 4ch oscilloscope. Time/Div will be set to enough resolution to read rise time of those signals and power. He would like to see them in two versions, one is /TFSA=High (VDD) and the other one is /TFS=Low (GND).
        
 
        He also would like to hear your comment on the scope shot already sent from the customer.
        
 
        Sorry for repeated requests on this issue. 
        
 
        Best Regards,
        
 
        Ricky
        
			
        

		
		
		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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													0
							
			
				
									
							        
			
			
			
          
            
			                            
                        
                on Jun 11, 2014 4:29 PM
            
            
					
          
	
          

		
		
          
					
          Hi Mark,
          
 
          My customer would like to see the scope shot of VDD, /TCLKA, /TFSA, and VOUTA with 4ch oscilloscope. Time/Div will be set to enough resolution to read rise time of those signals and power. He would like to see them in two versions, one is /TFSA=High (VDD) and the other one is /TFS=Low (GND).
          
 
          He also would like to hear your comment on the scope shot already sent from the customer.
          
 
          Sorry for repeated requests on this issue. 
          
 
          Best Regards,
          
 
          Ricky
          
			
          

		
		
		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

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