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MAX3158 Production
The MAX3158 is a high CMRR RS-485/RS-422 data-communications interface providing ±60V isolation in a hybrid microcircuit. A single +5V supply on the logic...
Datasheet
MAX3158 on Analog.com

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MAX3158CAI+

		
	
				

			

									
					    Chuck007
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Feb 3, 2026 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user inquired about the necessity of 100V capacitors (C1 and C2) for the MAX3158CAI+ device, which operates at 5V. The final answer directed the user to visit the technical support pages on the newly integrated Analog Devices website for further assistance, as only Maxim ATE products are currently supported on EngineerZone.
                        	    

                
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Product Number:  MAX3158 

    		        		    		    

		    		    
		    			

			    
On the data sheet for MAX3158CAI+ capacitors c1 and c2 specified as  0.047 100 volt.  Do they have to be 100 volt, seems high for a 5v device?

			

			
									    

			        
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    				Moved to Other Products

[edited by: emassa at 1:44 PM (GMT -4) on 2 Jun 2023]
				

						
		                                 
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                 question information
                
                                                    
                 Digital Isolation Technology
                
                                                    
                 Isolated RS-485
                
                                                    
                 MAX3158
                
                                                    
                 LMXMprodsupport