Physics · Network Theorems
An R-2R resistor ladder digital-to-analog converter (DAC) circuit is analyzed at its output terminal. The equivalent Thevenin voltage, Vth, and Thevenin resistance, Rth, as seen looking into the output node of an ideal 2-bit R-2R ladder connected to a reference voltage Vref = 2 V with digital input '01' (where MSB = 0, LSB = 1) and resistor value R = 1 kΩ are:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Vth = 1 V, Rth = 2 kΩ
- 2Vth = 1 V, Rth = 1 kΩ
- 3Vth = 0.5 V, Rth = 2 kΩ
- 4Vth = 0.5 V, Rth = 1 kΩ✓
Correct answer
Vth = 0.5 V, Rth = 1 kΩ
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