Products Mentioned

ADPA9002 Recommended for New Designs
The ADPA9002 is a gallium arsenide (GaAs), pseudomorphic high electron mobility transistor (pHEMT), monolithic microwave integrated circuit (MMIC), power...
Datasheet
ADPA9002 on Analog.com

Thread Details

  • State Verified Answer
  • +1 person also asked this people also asked this
  • Replies 1 reply
  • Subscribers 70 subscribers
  • Views 394 views
  • Users 0 members are here 

        

            Post
             Go back to editing
        

    

    


    

    









		


















	
	
			
	
			
		
	
	
		

	    
	    
	    		
ADPA9002 giving wrong output

		
	
				

			

									
					    RohitSingh
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Mar 11, 2025 
				
			
			
		

		
		                     
				
        		

		    
		    		    

		      		            		        
Category: Hardware

    		        		            		    
Product Number:  ADPA9002  

    		        		    		    

		    		    
		    			

			    
Hi,


     I am testing ADPA9002 evaluation board, the input given is AC coupled 1Vpp 20MHz square wave, the output i get periodic noise of about 20mV with same frequency as input.


Regards and thanks in advance

			

			
									
		                             
                        

    

                                            
                 hardware
                
                                                    
                 ADPA9002
                
                                                    
                 power amplifiers
                
                                                    
                 rf amplifiers
                
                                
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


				
	









	
    
	

  • 
	
    



	
			
		
	



    
	
    
		
    
							
					
    
		
    
		    
		    		    
			
				
									
							        
			
			
			
    •  Analog Employees  
    •  Super User  
    
            
						
                            
            
            				
            
                on Mar 11, 2025 2:42 PM
            
            
						
			            		
    
		
										+1
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    Hey  ,
    

    Can you provide more details on your test setup? Specifically, are you pulsing RFIN or VDD? Are you operating the device in self-biased mode, or are you using the alternative power-up sequence for ACG#? Also, have you incorporated a bias tee and external blocking capacitors in your setup?
    

    Regards,
    

    Dorant
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
				
				
				
		
		
    
			
		
    
	
    

    

    •