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How do I select between the TX and W1 sources for Bode Plot?

		
	
				

			

									
					    AngeloCasi
					
							

            
            			
				
									
											
			
			
				
  •  Analog Employees  

			
			
			    	
			                    
                
				                on Feb 5, 2025 
				
			
			
		

		
		                     
				
        		

		    
		    		    
		    			

			    
There appears to be two choices for the signal generation for bode plots, one for Transformer and W1. How do I know which one to choose for measurement?

			

			
									
		                             
                        

    

                                            
                 ltpa #bodeplot
                
                                
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			








	
	
	
	



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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on Feb 5, 2025 3:07 AM
            
            
						
			            		
    
		
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    It really depends on what signal amplitude you require for your measurement:
    

      

    • W1 has an output range of ±5 V, which allows you to use higher signal amplitude settings compared to the transformer option. However, this pin is also connected directly to the ADALM2000 signal generator, whose output is referenced to the GND of the LTpowerAnalyzer.
      • 

    • The transformer pins (T+, T-) are limited to a signal amplitude range of only ±500 mV, but they also produce an isolated output.
      • 

    

    In general, unless you really need a higher signal level, we recommend that you select the transformer as your signal source for the isolation it provides.
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
						
				
				
		
		
    
			
		
    
	
    

    

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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on Feb 5, 2025 3:07 AM
            
            
						
			            		
    
		
										0
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    It really depends on what signal amplitude you require for your measurement:
    

      

    • W1 has an output range of ±5 V, which allows you to use higher signal amplitude settings compared to the transformer option. However, this pin is also connected directly to the ADALM2000 signal generator, whose output is referenced to the GND of the LTpowerAnalyzer.
      • 

    • The transformer pins (T+, T-) are limited to a signal amplitude range of only ±500 mV, but they also produce an isolated output.
      • 

    

    In general, unless you really need a higher signal level, we recommend that you select the transformer as your signal source for the isolation it provides.
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
						
						
				
				
		
		
    
			
		
    
	
    

    

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