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ad780输出3v有问题。

		
	
				

			

									
					    fuzziy@163.com
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jul 11, 2016 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
		    			
    
			    
    我使用AD780BR，希望输出3V基准电压，可实际输出却是2.64V。不知是怎么原因？请指教，谢谢！！
    
 
    AD780BR芯片pin8引脚是接GND时，输出是2.648v。
    
 
    如果AD780BR芯片pin8引脚悬空，输出是2.495v.
    
 
    8脚接gnd，输入引脚加的1uf电容，输出悬空，还是输出只有2.64V。请帮忙再看看，谢谢!
    
			
    
			
									
		                             
                        

    
    
                                            
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