1. Is it ok to set 3.3V as a divider output which goes to ADC pin?2. The external voltage at VDDA pin (We have given the same VDD as VDDA) show some fluctuations while ADC monitoring so can you suggest the best possible way to monitor battery voltage...
What can be the range of output voltage i can set at output of voltage divider.External impedance mention in datasheet is 50kohm. How can i match same impedance at the input of ADC pin while using voltage divider?There are various values of RAIN ment...
LiPo battery ratings is 3V to 4.2V.Any reference circuit than please share.I want to learn exact calculation for ADC.There are various values of RAIN mention in table 63 of datasheet.Should i use same values for Resistor Divider?How much counts i can...
Hi Thanks David for your reponse.@ Clive Two.Zero We will check as per your suggestion and hope that help me in optimizing our code.Can you suggest any other possible ways to optimize code?Thanks in advence.
Dear Avatar,It means R22 should be restricted to less than 50K to match external impedance????I dont want to add more circuit in my design.Suggest me values of resistor R22 and R23.
Hello Avatar and Danish.Here i am sharing image with calculation and values of Divider with Vout and Iout.Also attached same image.external input impedance of ADC pin is 50k.Does these values help in matching 50k impedance.if i am using value of R23 ...
Dear Danish,Thanks for your answer.For resistor divider.I need to consider values of both resistor R1 and R2 below 50k to match 50k impedance?Or i can use higher value of R1 in mega ohm and R2(connected to gnd) below 50k ohm to match impedance. does ...
