Given this R-2R 4-bit DAC, with R=1kOhms, a. Draw the simplified version with one equivalent resistor to Vref and one equivalent resistor to GND, and Vout at the mid-point node. b. If Vref=5V, what is Vout? c. What is Vout if all four switches are connected to Vref (code 1111)?

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2. Given this R-2R 4-bit DAC, with R=1kOhms,
a. Draw the simplified version with one equivalent resistor to Vref and one equivalent
resistor to GND, and Vout at the mid-point node.
b. If Vref=5V, what is Vout?
c. What is Vout if all four switches are connected to Vref (code 1111)?
R
R
R
VouT
2R
2R
2R
2R
2R
A
B /.
C
VREF
ww
ww
ww
Transcribed Image Text:2. Given this R-2R 4-bit DAC, with R=1kOhms, a. Draw the simplified version with one equivalent resistor to Vref and one equivalent resistor to GND, and Vout at the mid-point node. b. If Vref=5V, what is Vout? c. What is Vout if all four switches are connected to Vref (code 1111)? R R R VouT 2R 2R 2R 2R 2R A B /. C VREF ww ww ww
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