1. I have a microcontroller with 10 bit adc. Adc ref voltage is 5Vdc.
So its resolution would be: 5V/1023.
Now in my system I have three segment display & max reading upto 99.9V. So that means I have to measure voltage with 0.1V resolution.
2. Can I measure the system upto 99.9Vdc with 0.1V accuracy using 10bit adc?
3. I think yes, calculation according to me:
A. TO make 100Vdc to 5V I will use resistor divider of 20 i.e 190K:10K
B) Resolution of MCU with 5V: 5V/1023
C) Resolttion required 0.1V.
D) Resolution wih divider: (5V/1023) * (20) = 0.09775V
Since resolution requied is greater than resolution with divider so I think I can measure
4. I dont know how much accurate system will be. Will do testing for it.
So its resolution would be: 5V/1023.
Now in my system I have three segment display & max reading upto 99.9V. So that means I have to measure voltage with 0.1V resolution.
2. Can I measure the system upto 99.9Vdc with 0.1V accuracy using 10bit adc?
3. I think yes, calculation according to me:
A. TO make 100Vdc to 5V I will use resistor divider of 20 i.e 190K:10K
B) Resolution of MCU with 5V: 5V/1023
C) Resolttion required 0.1V.
D) Resolution wih divider: (5V/1023) * (20) = 0.09775V
Since resolution requied is greater than resolution with divider so I think I can measure
4. I dont know how much accurate system will be. Will do testing for it.