). with the input voltage range set at +/- 500mv, what is the smallest difference in voltage that can be resolved? show your cal

Question

CaHeK987 [17]

4 years ago

11

). with the input voltage range set at +/- 500mv, what is the smallest difference in voltage that can be resolved? show your cal

culation.

Physics

1 answer:

dalvyx [7] · Answer 1 · 2021-11-18T01:28:48+03:00

The smallest difference in voltage that can be resolved is referred to as the resolution. The resolution can be calculated with the following formula:
resolution=voltage range / digital range
The voltage range in our case is from -500mV to 500mV, which gives 1000mV.
The digital range on the other hand is 2^(number of bits).
It depends on what type of bit board we are using. If the ADC we are using is a 16 bit board, then 2^16=<span>65536.
So, the resolution is:
resolution=1000mV/</span><span>65536=0.015 mV</span>