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AD9042 Production
The AD9042 is a high speed, high performance, low power, monolithic 12-bit analog-to-digital converter. All necessary functions, including track-and-hold...
Datasheet
AD9042 on Analog.com

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Can I connect digital and analog supply of 3.3V in AD9042?



		

			

									
					    saunakb
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Apr 12, 2018 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hello AD Experts,
    
 
    I am using AD9042 for Digital Control of Power Supply. 
    
 
    I am using FPGA as a digital controller which operates on 3.3V only. But here it is mentioned that the AD9042 requires 5V analog and digital power supply. 
    
 
    But absolute maximum ratings suggest it can operate in 0 to 7V  for both analog and digital power supply.
    
 
    I am not cleared whether I should proceed further for 3.3V analog and digital supply or not. 
    
 
    Can you also provide application circuits for the same?
    
 
    Thanks and Regards 
    
 
    Saunak Bhalsod
    
									
			        
		
    

				
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Apr 13, 2018 2:50 AM
            
            
					
      
	
      

		
		
      
					
      Hi Saunak,
      
 
      The Absolute Maximum Ratings voltages are not operating voltages, but stress ratings beyond which could damage the part.
      
 
      The AD9042 requires 5V power supplies. Page 15 of the datasheet states that AVcc must be within 5% of 5V. I'm sorry but 3.3V will not work.
      
 
      Thank you.
      
 
      Doug
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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