Interfacing to the Analog World Questions

• A transducer is a device that:
• The basic approach to testing D/A converters is to:
• Inaccurate A/D conversion may be due to:
• What is the maximum conversion time for an 8-bit successive-approximation ADC with a clock frequency of 20 kHz?
• A test system using the GPIB is being used to monitor a potentially dangerous crash test from a distance of 200 feet. The engineer decides to have you fabricate a special cable, rather than order one, since all the materials are on hand and the tests are already behind schedule. When the tests are run, the test system is erratic and the data is almost useless. What has gone wrong?
• If an analog signal is to be converted to an 8-bit resolution, how many comparators are used in a parallel-encoded ADC?
• What is one advantage to using a parallel-encoded (flash) ADC?
• ________ are the most linear of all the temperature transducers.
• Which of the equations below expresses the voltage gain relationship for an operational amplifier?
• Three characteristics of op amps make them almost ideal amplifiers: very high input impedance, very low impedance, and ________.
• What is the resolution of a D/A converter?
• Referring to the given figure, what should the display on the scope look like if the A/D converter is working properly?
• Referring to the given figure, what appears to be wrong, if anything, with the output of the D/A converter?
• How many different voltages can be output from a DAC with a 6-bit resolution?
• If the same analog signal is to be converted to an 8-bit resolution using a counter-ramp ADC, how many comparator circuits would be used?
• The process by which a computer acquires digitized analog data is referred to as ________.
• What is the resolution of a D/A converter?
• What is the current in R1 and the current in R2 for the circuit shown below?
• An actuator is usually a device that:
• Sample-and-hold circuits in A/D converters are designed to: