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AD7685



		

			

									
					    rose
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Aug 12, 2013 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    您好：
    
 
           最近用AD7685时，用单片机IO模拟四线SPI通讯。输入5v模拟电压时，得到的16位二进制数都是零。请问这是什么原因引起的呢？
    
									
			        
		
    

				
						
        

    
    Tags: 
                                            
                 Single Channel A/D Converters
                
                                                    
                 ad7685
                
                                                    
                 Precision A/D Converters