= [15v-(15v/28)] = (15v-0.0586) = 14.94v. 6. Pick out the incorrect statement “In a 3 bit weighted resistor DAC”
A. Although the op-amp is connected in inverting mode, it can also be connected in non-inverting mode
B. The op-amp simply work as a current to voltage converter
C. The polarity of the reference voltage is chosen in accordance with the input voltage
D. None of the mentioned
Answer:A
= [15v-(15v/28)] = (15v-0.0586) = 14.94v. 6. Pick out the incorrect statement “In a 3 bit weighted resistor DAC”
A. Although the op-amp is connected in inverting mode, it can also be connected in non-inverting mode B. The op-amp simply work as a current to voltage converter C. The polarity of the reference voltage is chosen in accordance with the input voltage D. None of the mentioned
Explanation: The polarity of the reference voltage is accordance with the type of the switch used. For example, in TTL switches, the reference voltage should be +5v and the output will be negative. 7. What is the disadvantage of binary weighted type DAC?