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AD7768-4  IOVDD电压不对



		

			

									
					    Alan.Li
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 15, 2022 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    按datasheet将IOVDD与DREGCAP短接，可使IOVDD电压为1.8V，但是实测只有1.3V，请问是哪里配置的不对？原理图如下
    

     
    
									
			        
		
    

				
						
        

    
    Tags: 
                                            
                 Simultaneous Sampling A/D Converters
                
                                                    
                 ad7768-4
                
                                                    
                 Precision A/D Converters