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ADG839输入为0时，仍可输出电压值

		
	
				

			

									
					    Joanne
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 22, 2020 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
     
    

    电路图如图，IN输入端口接单片机的IO口，当设置单片机IO输出0时，在D输出端口仍可检测到2.048V的直流输出电压。请问这是为什么，难道不应该输出0吗
    
			
    
			
									
		                             
                        

    
    
                                            
                 Single-Supply Analog Switches and Multiplexers
                
                                                    
                 ADG839
                
                                                    
                 Analog Switches Multiplexers
                
                                                    
                 switches and multiplexers