Explanation: Usage wide range of resistors is the limitation of binary weighted resistor type DAC, this can be avoided by using R-2R ladder type DAC Where only two value of resistor are required. 11. Find output voltage equation for 3 bit DAC converter with R and 2R resistor?
A. Vo= -RF [(b2/8R) +(b1/4R) +(b0/2R)]
B. Vo= -RF [(b2/R) +(b1/2R) +(b0/4R)]
C. Vo= -RF [(b2/2R)+(b1/4R) +(b0/8R)]
D. Vo= -RF [(b0/4R)+(b1/2R) +(b2/R)]
Answer:A
Explanation: Usage wide range of resistors is the limitation of binary weighted resistor type DAC, this can be avoided by using R-2R ladder type DAC Where only two value of resistor are required. 11. Find output voltage equation for 3 bit DAC converter with R and 2R resistor?
A. Vo= -RF [(b2/8R) +(b1/4R) +(b0/2R)] B. Vo= -RF [(b2/R) +(b1/2R) +(b0/4R)] C. Vo= -RF [(b2/2R)+(b1/4R) +(b0/8R)] D. Vo= -RF [(b0/4R)+(b1/2R) +(b2/R)]
Explanation: The output voltage corresponding to all possible combination of binary input in a 3-bit R-2R DAC is given as