Interfacing to the Analog World Questions

• A(n) ________ converts an analog input to a digital output.
• For each bit that is added to a digital ramp ADC, the conversion time ________.
• A 4-bit stairstep-ramp A/D converter has a clock frequency of 100 kHz and a maximum input of 10 V, and has 6 V applied to the input. The conversion time will be ________.
• The stability of the ADC process can be improved by using a(n) ________ to hold the analog voltage constant while the A/D conversion is taking place.
• There are many applications in which analog data must be digitized and transferred into a computer's memory. The process by which the computer acquires these digitized analog data is referred to as ________.
• A simultaneous A/D converter is also known as a(n) ________ A/D converter.
• A major application for DSP is in ________ and ________ of analog signals.
• The input of an analog-to-digital converter is ________.
• The characteristic that a change of one binary step on the input of a DAC should cause exactly one step change on the output is called ________.
• On a binary-weighted D/A converter the least significant binary input ________.
• ________ ADCs use no clock signal, because there is no timing or sequencing required.
• The circuit shown below is a(n) ________.
• A counter-ramp ADC uses a comparator to compare the input voltage with ________.
• A counter-ramp ADC stops counting when ________.
• The main advantage of the tracking A/D converter over the stairstep-ramp A/D converter is that ________.
• The circuit shown below is a(n) ________.
• The number of binary bits at the input of a DAC or the output of an ADC is known as ________.
• The output of the circuit in the given figure (a) at point X on figure (b) will be ________.
• ________ ADCs have a fixed value of conversion time that is not dependent on the value of the analog input.
• A signal ________ is produced by sampling the signal at a rate less than the minimum rate identified by Nyquist.