Products Mentioned

AD8436 Recommended for New Designs
The AD8436 is a new generation, translinear precision, low power, true rms-to-dc converter loaded with options. It computes a precise dc equivalent of...
Datasheet
AD8436 on Analog.com

Thread Details

  • State Verified Answer
  • Replies 5 replies
  • Subscribers 37 subscribers
  • Views 1810 views
  • Users 0 members are here
Options 

        

            Post
             Go back to editing
        

    

    


    

    









		


















	
	
			
	
			
		
	
	
		

	    
	    
	    		
AD8436 Simulation

		
	
				

			

									
					    Jeansy78
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Feb 10, 2023 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user encountered issues simulating the AD8436 where the output converges to zero. The final answer confirmed that the LTSpice model has a known issue and requires IGND to be connected to GND for proper operation, especially in dual supply configurations. This connection is not necessary for the actual AD8436 device.
                        	    
    
                
                     AI Generated Content
                
    	    
    
             
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Hardware
    
    		        		        		    		    
    
		    		    
		    			
    
			    
    Hi everybody,
    

    

    I have a problem simulating the AD8436. I reproduced several designs found on the datasheet and on internet, but the problem is always the same : the output converges towards zero.
    

    Here is the circuit :
    

     
    

    

    Anyone can help?
    

    Thank you
    
			
    
			
									
		                             
                        

    
    
                                            
                 hardware
                
                                                    
                 Analog Functions
                
                                                    
                 ad8436
                
                                                    
                 RMS to DC Converters