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One form of a sigma/delta modulator circuit is designed to convert a continuous analog signal into a modulated bit stream (A/D).

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False

Correct Answer: True

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More Questions from Interfacing to the Analog World

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.
The main advantage of the SAR ADC method is its high speed.
Resolution in the analog output of a DAC is primarily dependent on the number of input binary bits.
The delay between a change on the digital input of a DAC and the appearance of the change on the output is called settling time.

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