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Spice model of AD5144

		
	
				

			

									
					    AkiraO
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 7, 2017 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user inquired about the AD5144 SPICE model, confirming if the AD5140 model is applicable, understanding the independent and pot modes, and the possibility of modifying the model for 100k ohms. The support engineer confirmed the AD5140 model is correct for AD5144, explained that the 9-pin is for independent control allowing separate programming of Raw and Rbw, and advised against altering the model without SPICE experience.
                        	    
    
                
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    Hello,
    
 
    I have some questions about the spice model of AD5144.
    
 
    (1) I downloaded the spice model from ADI WEB site. The file name is AD5144_10k.cir. But the first line of the description of the model is AD5140 SPICE MACROMODEL. Is this file correct spice model of AD5144?
    
 
    (2) According to the description of the model, 9pin is for independent control. Could you please advise me the independent mode and pot mode?
    
 
    (3) The model is for 10k ohms. Can I change the model to 100k ohms? If yes, how can I change it?
    
 
    Best Regards,
    
 
    Akira
    
			
    
			
									
		                             
                        

    
    
                                            
                 D/A Converters (DAC)
                
                                                    
                 data converters
                
                                                    
                 ad5144
                
                                                    
                 Digital Potentiometers (DigiPOT)
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Dec 12, 2017 5:43 AM
            
            
						
			            		
      
		
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      Hi Akira,
      
 
      Let me answer your questions:
      
 
      (1) AD5140 is the main generic of the part AD5144. Hence the name.
      
 
      (2) The Independent mode refers to the Linear gain setting mode, where you can program the resistance Raw and Rbw separately. Please look in the Linear gain setting mode in the data sheet for further information.
      
 
      (3) As part of our licensing agreement, the customer may modify the model themselves if they wish but we do not recommend altering the model unless they have experience with spice syntax.
      
 
      Regards,
      
 
      Koushil
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Dec 12, 2017 5:43 AM
            
            
						
			            		
      
		
										0
					
	
      

		
		
      
		
      
                                
                                                            
      
					
      Hi Akira,
      
 
      Let me answer your questions:
      
 
      (1) AD5140 is the main generic of the part AD5144. Hence the name.
      
 
      (2) The Independent mode refers to the Linear gain setting mode, where you can program the resistance Raw and Rbw separately. Please look in the Linear gain setting mode in the data sheet for further information.
      
 
      (3) As part of our licensing agreement, the customer may modify the model themselves if they wish but we do not recommend altering the model unless they have experience with spice syntax.
      
 
      Regards,
      
 
      Koushil
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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