4. A binary-weighted digital-to-analog converter has a feedback resistor, Rf, of 12 kΩ. If 50 µA of current is through the resistor, the voltage out of the circuit is:
5. A binary-weighted digital-to-analog converter has an input resistor of 100 kΩ. If the resistor is connected to a 5 V source, the current through the resistor is: