Analog and Digital Converters - Technical MCQs
Q1: The problems of the binary-weighted resistor digital-to-analog converter (DAC) can be overcome by using ___________.A
an 8-bit binary-weighted resistor DAC
B
an R/2R ladder DAC
C
a staircase DAC
D
a flash DAC
ANS:B - an R/2R ladder DAC When the number of inputs are > 4 or combinations (2^n >16) is more, the binary-weighted resistors may not be readily available. This is why are and 2R method is more preferred as it requires only two sets of precision resistance values. |
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