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ADG1634 Production
The ADG1633 and ADG1634 are monolithic industrial CMOS (iCMOS®) analog switches comprising three independently selectable single-pole, double-throw (SPDT...
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ADG1634 on Analog.com

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Can unsued ports (inputs and outputs be left floating)?

		
	
				

			

									
					    emnet
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 10, 2024 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user inquires about leaving unused ports (S3A/B, S4A/B, D3, D4, IN3, IN4) of ADG1634 ICs floating. The final answer recommends connecting S3A/B and S4A/B to GND via resistors, and D3 and D4 can be left floating or connected to GND via resistors. IN3 and IN4 can float. The accompanying answer clarifies that connecting S3 and S4 to GND via resistors is not mandatory but recommended.
                        	    
    
                
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    Category: Hardware
    
    		        		            		    
    Product Number:  ADG1634  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hello,
    

    I am using several ADG1634 ICs in my board but in the last one, I only use two ports (S1A/B & D1 and S2A/B & D2). S3/D3 and S4/D4 are unused at all.
    

    Is it okay if I leave the S3A/B, S4A/B, D3 and D4 floating? What about IN3 and IN4?
    

    Thank you.
    
			
    
			
									
		                             
                        

    
    
                                            
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