Question

A sensor, for an input of 4 V, gives a digital output of a word of 8 bits. The resolution is​

Answer 1

Answer:

A sensor, for an input of 4 V, gives a digital output of a word of 8 bits. The resolution is: 4128 v (28148 4/8 V 8/4V

Answer 2

Resolution = 0.015625

Resolution: The sensor resolution, also known as measurement resolution, is the smallest change in the amount being measured that can be detected. The numerical resolution of the digital output is generally the resolution of a sensor with a digital output.

Different bit resolutions are used by different interfaces, which means different ADC chips/boards are used. The number of steps a chip can split a voltage range into is determined by the number of bits it possesses.

When we talk about a sensor's resolution, we're really talking about the lowest step size that a certain interface can report from the sensor without experiencing bit noise. This isn't a metric for sensor precision.

∴ number of steps = $2^{8}$

∴ number of steps = 256.

Resolution = $\frac{voltage range}{number of steps}$

∴ Resolution = $\frac{4}{256}$

∴ Resolution = 0.015625