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Interfacing to the Analog World
A light bulb and a switch are examples of an analog circuit.
True
Correct Answer:
False
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Interfacing to the Analog World
A summing op-amp can be used for DAC.
Voltage-to-frequency ADC is more complicated than other ADCs.
One form of a sigma/delta modulator circuit is designed to convert a continuous analog signal into a modulated bit stream (A/D).
Flash A/D converters depend on an input clock pulse to perform each conversion.
The time required to complete a conversion cycle is called conversion time.
An operational amplifier is used as a comparator.
In a counter-ramp A/D converter, the end-of-conversion line must be tied back to the clear input of the counter to change the circuit to perform continuous conversions.
When analog inputs from several sources are to be converted, a multiplexing technique can be used so that one ADC may be time-shared.
A D/A converter changes things such as temperature variations into digital quantities.
In a binary-weighted D/A converter the sum of all the currents from the binary weighted resistors flows through the operational amplifier.
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