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AD5422芯片问题

		
	
				

			

									
					    SHAHAH
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 4, 2023 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    AD5422芯片IOUT输出不接电阻负载，MCU读不到芯片寄存器，接了负载就可以正常读取，请问是什么原因？
    

    电路如图：
    

     
    
			
    
			
									
		                             
                        

    
    
                                            
                 4-20mA Current Loop D/A Converters
                
                                                    
                 Precision D/A Converters
                
                                                    
                 ad5420
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
				
      
					
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