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HMC742A Recommended for New Designs
The HMC742A is a digitally controlled variable gain amplifier which operates from 70 MHz to 4 GHz, and can be programmed to provide from -19.5 dB attenuation...
Datasheet
HMC742A on Analog.com

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HMC742A Supply voltage range

		
	
				

			

									
					    Ashwin95
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jun 25, 2023 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  HMC742A 
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hi
    

    The datasheet of HMC742 does not mention any range for the input supply for the device. Since all of the circuit in my board works on 3.3 V or lower and have limited space I cannot go for a device with 5V supply. Please let me know if the device would work at 3.3 V and if so, what changes in its characteristics are to be expected?
    

    

    Thank you
    

    Ashwin 
    
			
    
			
									
		                             
                        

    
    
                                            
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jul 4, 2023 10:07 AM
            
            
						
			            		
      
		
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      Hi Ashwin, 

      At 3.3V operation, Insertion loss is expected to be worsened to begin. Additionally, compression level is expected to be derated.
      I did preliminary test with -5dBm RF input and insertion loss gets worse 0.5dB compared to 5V supply case. Similarly, Insertion loss gets worse 1.5dB when the input power is 10dBm.

      Best regards,
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
				
				
				
		
		
      
			
		
      
	
      

      

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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Jul 4, 2023 10:07 AM
            
            
						
			            		
      
		
										+1
					
	
      

		
		
      
		
      
                                
                                                            
      
					
      Hi Ashwin, 

      At 3.3V operation, Insertion loss is expected to be worsened to begin. Additionally, compression level is expected to be derated.
      I did preliminary test with -5dBm RF input and insertion loss gets worse 0.5dB compared to 5V supply case. Similarly, Insertion loss gets worse 1.5dB when the input power is 10dBm.

      Best regards,
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
				
				
				
		
		
      
			
		
      
	
      

      

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