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ADATE305 Production
The ADATE305 is a complete, single-chip solution that performs the pin electronic functions of the driver, the comparator, and the active load (DCL), per...
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ADATE305 on Analog.com

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Can I do initial calibration of ADATE305 ?

		
	
				

			

									
					    Aggil
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Feb 3, 2026 
				
			
			
		

		
		                     
				
        		

		    
		    		    
		    			

			    
Hi


 Output of  DUT0 /DUT1 is differente when the power supply and code are all the same, Can I do the initial calibration ? And how do it ?


Another, different chips at the same code, same power supply , the output voltage are differente. This also need calibration.


thanks 

			

			
									
		                                 
Thread Notes  

                

        
                                        
                        

    

                                            
                 amplifiers
                
                                                    
                 adate305
                
                                                    
                 Specialty Amplifiers
                
                                                    
                 Pin Electronics (PE)/ Pin Drivers ATE
                
                                
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


				
	









	
    
	

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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on Nov 11, 2020 1:31 AM
            
            
						
			            		
    
		
										0
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    Hi Aggil,
    

     
    

    One common calibration method you can apply to the ADATE305, is to do a two-point calibration. You have to first get its offset and gain errors. Please see the steps below for manual calibration.
    

     
    

      

    1. For the offset error, force 0V and measure at Measout pin. The voltage at Measout pin will be the offset error.
      2. 

    2. For the gain error, force 2 values (e.g. 2V and 5V) and measure these voltages at Measout pin. Then, subtract the values of the two and divide it by the difference of the two forced voltages. The result will be your gain error.
      3. 

    3. On your software, you have to subtract the offset error to your programmed value and then, divide it to the gain error. The value you get will be now your new programmed value or your calibrated value. Below is the equation.
      4. 

    

    

    

                 Calibrated value = (Programmed Value – Offset Error)/(Gain Error)
    

    

    

    Best Regards,
    

    DJ
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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                on Nov 12, 2020 3:26 AM
            
            
												
						in reply to ADIApproved
					
										
			            		
    
		
										0
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    Hi
    

      Thank you.
    

      Another, As below table. 
    

      

    • 

      The actual output voltage of VL differs greatly from the theoretical value, and the error is > 700MV
      

      • 

    • The actual test of VT/VH/VL upper and lower voltage has a large error with the theoretical value of the upper and lower voltage
      • 

    • 

      HVOUT has a maximum voltage output of only 15.13V and a minimum of -0.68V. It is different with ds.
      

      • 

    

    


    
IC NO.
Drive state
Reg add
set voltage code
The theory of voltage（V）
practical DUT0（V）
practical DUT1（V）
HVOUT（V）
备注

    

    
PEC32_4#
     ADATE305_1#    		
VL
0X02
0X2ccc
4.5
3.9
3.85
　
　

    

    
0X3fff
7.5
6.36
6.39
　
　

    

    
0X0
-2.5
-2.35
-2.37
　
　

    

    
VH
0X01
0X2ccc
4.5
4.52
4.5
　
　

    

    
0X3fff
7.5
7.06
7.1
　
　

    

    
0X0000
-2.5
-1.24
-1.26
　
　

    

    
VT
0X03
2ccc
4.5
4.53
4.51
　
　

    

    
3fff
7.5
7.08
7.09
　
　

    

    
0X0000
-2.5
-2.36
-2.39
　
　

    

    
PMU
0X0b
0Xb333
4.5
4.48
4.49
　
　

    

    
ffff
7.5
7.47
7.49
　
　

    

    
0X0000
-2.5
-2.513
-2.5
　
　

    

    
VHH
0X03
2ccc
11
　
　
11.1
VHH = (VT + 1 V) × 2

    

    
3fff
17
　
　
15.13

    

    
0X0000
-3
　
　
-0.68

    

    
VDD = +10.17 V, VCC = +3.3 V, VSS = −5.68 V, VPLUS = +16.47 V, VCOMP_VTT = +3.3 V, VREF = +4.98 V, VREF_GND = 0.0 V

    
    

    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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    •  Analog Employees  
    
            
						
                            
            
            				
            
                on Nov 12, 2020 4:35 AM
            
            
												
						in reply to Aggil
					
										
			            		
    
		
										0
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    Hi Aggil,
    

    

    Can we take this offline? Please send an email to me at danilojames.marciano@analog.com.
    

    

    Best Regards,
    

    DJ
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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                on Nov 15, 2020 11:03 PM
            
            
												
						in reply to ADIApproved
					
										
			            		
    
		
										0
					
	
    

		
		
    
		
    
                                
                                                            
    
					
    Hi
    

      thanks ,we wil summarize the question and mail to you. 
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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