Products Mentioned

ADIS16209 Recommended for New Designs
The ADIS16209 is a high accuracy, digital inclinometer that accommodates both single-axis (±180°) and dual-axis (±90°) operation. The standard supply voltage...
Datasheet
ADIS16209 on Analog.com

ADXL321 Not Recommended for New Designs
The ADXL321 is a small and thin, low power, complete dual-axis accelerometer with signal conditioned voltage outputs, which is all on a single monolithic...
Datasheet
ADXL321 on Analog.com

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Long-term stability of ADIS16209

		
	
				

			

									
					    Mochi
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on May 24, 2017 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user inquired about the long-term stability of the ADIS16209, specifically the acceleration measurement bias and scale factor stability. The support engineer noted that while specific long-term stability data is not provided beyond the datasheet, the acceleration drift in stable conditions is typically around 50 to 100 ug/sqrt(hour). For example, after 100 hours, the expected drift is approximately 1 mg. The user appreciated the response.
                        	    
    
                
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    Can you show data on long-term stability of ADIS16209?

    Long term stability of acceleration measurement bias ([m / s ^ 2 / year] when possible).
    Long-term stability of the scale factor (at [% / year] if possible).

    I have read the article "ADXL321: Long term stability".
    
 
    https://ez.analog.com/docs/DOC-15797
    
 
     
    
 
    Best regards
    
			
    
			
									
		                             
                        

    
    
                                            
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                on May 24, 2017 7:24 PM
            
            
						
			            		
        
		
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        I appreciate your quick response.
        thank you very much.
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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        •  Analog Employees  
        •  Super User  
        
            
						
                            
            
            				
            
                on May 25, 2017 6:30 AM
            
            
						
			            		
        
		
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        Some of the conclusions in the FAQ you reference are a bit old, so I would not apply them broadly. They appear to be take from datasheets that are over 10 years old. Today, we cannot make statements that apply to all ADXRS or ADXL devices.
 
         
        
 

        
 
        We cannot offer any specification that is beyond the datasheet in this forum, but I can tell you that we have observed that when operating in stable environmental conditions, the acceleration drift seems to follow a trajectory that is in the region of 50 to 100 ug/sqrt(hour). 
        
 

        
 
        For example, after 100 hours:
        
 

        
 
        Accel-drift = 100 ug/sqrt(hour) x sqrt(100hours) = 1mg
        
 

        
 
        Hope this helps! 
        
 

        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
						
						
				
				
		
		
        
			
		
        
	
        

        

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