Digital Electronics - Engineering

Q1:

An 8 bit DAC has a full scale output of 2 mA and full scale error of ± 0.5%. If input is 10000000 the range of outputs is

A 994 to 1014 μA

B 990 to 1020 μA

C 800 to 1200 μA

D none of the above

ANS:A - 994 to 1014 μA

10000000 = 128, 11111111 = 255 If there is no error, output = = 1004μA. Maximum error = Hence range of output 994 to 1014 μA.