M5/B2 DATA CONVERSION

Which components are needed in an analogue to digital converter?. Reference voltage, input gate, and comparator. Reference voltage and output regulator. Internal counter and output.

How is position feedback converted in a computer-controlled flight system?. Analogue to digital. Digital to analogue. Feedback to rate feedback.

What are physical variables like voltage or shaft rotation classified as?. Digital. Binary. Analogue.

Why does an A to D converter use successive approximation?. To increase speed. To reduce power. To increase accuracy.

What does the sampling rate in an ADC influence?. how accurately the digital output represents the analog signal. half of the highest input frequency. the analog signal resolution.

Which resistors are used in a 4-bit binary weighted resistor DAC?. of R, 2R, 4R and 8R. of R and 2R. resistors depending on supply voltage.

What is true about successive approximation ADCs?. They need many comparators. Both statements are true. They provide fast conversion.

What is the role of a precision amplifier in a D to A converter?. Ensure accurate input. Ensure accurate output voltages. Correct feedback resistor changes.

Which type of signal has values in volts and physical position?. digital. synchronous. analogue.

What does an ADC convert?. Voltage to digital value. A digital value to voltage. Digital to analogue.

How many comparators are needed for an 8-bit Flash ADC?. 255. 7. 32.

To make signal data usable for a computer, the transducer’s output must be modified by. an analogue to digital converter. a digital to analogue converter. a commutator.

How many output levels does a 10-bit DAC provide?. 100. 1024. 10.

What affects the accuracy of an analogue to digital converter?. Frequency. Sampling rate. Amplitude.

What describes a continuously variable signal?. Discrete. Analogue. Digital.

What is meant by throughput rate in ADC systems?. Sampling rate. Output signal quality. Number of digital words per time.

Which statement is true about binary weighted DACs?. They require many comparators. It is expensive to fabricate close tolerance resistors. Neither statement is true.

If a data signal is composed of 1s and 0s, it is. Digital. Analogue. Logic.

Which resistors are used in R-2R DACs?. Two values of resistors with acceptable tolerance. Two precision resistors. Resistors with logarithmic values.

In an analogue to digital converter, the input voltage. stays on constantly. is switched by digital input. is intermittent.

What is the function of sensors in aircraft systems?. convert data from analogue to digital. convert data from digital to analogue. generate signals representing parameters.

What does AD converter resolution define?. The throughput rate. The number of discrete values it can represent. The accuracy level.

How many comparators are needed in a 4-bit Flash ADC?. 7 Comparators. 15 Comparators. 16 Comparators.

What does a logic 1 in the MSB of a bipolar ADC indicate?. Zero input voltage. Negative input voltage. Positive input voltage.

What is true about the resistor values in an R-2R digital-to-analogue converter?. They have absolute precision. They have relative precision. They have no precision.

In ADC systems, when are signals sampled?. randomly. at specific times. continuously.

What device converts analog signals into digital form?. Decoder. Digitizer. Multiplexer.

What device converts analogue signals to digital form?. Analogue converts. Digital converters. DA converters.

What improves the accuracy of an analogue to digital converter?. high sampling rate. regulated supply. high number of bits.