If V ref = 5 V, R = 20 kΩ, and R F = 10 kΩ, find the full scale v
| If Vref = 5 V, R = 20 kΩ, and RF = 10 kΩ, find the full scale voltage.
A. 4.6875 V
B. – 4.6875 V
C. 5 V
D. – 5 V
Please scroll down to see the correct answer and solution guide.
Right Answer is: B
SOLUTION
The step size is equivalent to output voltage corresponding to LSB input, and given by
Full scale voltage is equivalent to corresponding output voltage when all input bits are high, So, we obtain the output for the input (1111)2 = 1510 as
Full scale output Voltage = - 0.3125 V × 15
= -4.6875 V
