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请教关于AD4022模拟输入的问题



		

			

									
					    JINGUI
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Nov 17, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    打算用AD4022采集+-2.5V的直流电压信号，请问前端必需要加运放么？如果不用运放，被测信号直接接IN+和IN-行么？
    
								
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



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