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ADPD4100 Recommended for New Designs
The ADPD4100/ADPD4101 operate as a complete multimodal sensor front end, stimulating up to eight light emitting diodes (LEDs) and measuring the return...
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ADPD4100 on Analog.com

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ADPD4100 Peak Sampling Rate



		

			

									
					    tylerchen
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jul 15, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hello ADI support team! Quick question for you -
    

    I'm trying to get a ballpark for how many samples per second this AFE can achieve across all channels, though I know the slot timing configuration registers depend on the number of repeats, pre-width, offset, etc. In the ADPD4100 datasheet I see that the peak sampling rate is listed as 9kHz when using the internal 1Mhz low-freq oscillator (pg 1). 
    

    Where does the 9kHz number come from? Is this 9kHz times 12 timeslots = 108k samples / sec?
    

    Thanks very much for your support!
    

    Best,
    

    Tyler