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ADT7420 response time around 2 mins



		

			

									
						Duncan7823
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on May 25, 2020 
				
			
			
		


				
		

		    		    
		    
		    	
			
Hi,




I am currently using the ADT7420 temperature sensor for my project. The board I used is the EVAL-ADT7420-PMDZ board from ADI. The datasheet indicates the response time of this sensor is very quick(around 5-10s) but I found it that it took 2 mins to report room temperature(~22C) when I took the sensor out from my home refrigerator(~0C). I use all the default settings (13 bits resolution and etc.)


I wonder what might be the problems to drag down the response time?


Any advice would help and thank you in advance.


Duncan