Digital Electronics-Interfacing to the Analog World

Digital Electronics-Interfacing to the Analog World
61. An operational amplifier is used as a comparator.
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62. Resolution in the analog output of a DAC is primarily dependent on the number of input binary bits.
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63. The primary disadvantage of the flash A/D converter is the large number of comparators required.
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64. A summing op-amp can be used for DAC.
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65. A data acquisition system may communicate via two common buses: the data bus and the control bus.
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66. The time required to complete a conversion cycle is called conversion time.
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67. Generally speaking, DACs with a current output will have a shorter settling time than those with voltage outputs.
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68. A D/A converter changes things such as temperature variations into digital quantities.
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69. If the least significant bit (LSB) of a four-bit binary-weighted resistor D/A converter connects to a 200 resistor, then the resistor needed for the next bit is 100 .
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70. Flash A/D converters depend on an input clock pulse to perform each conversion.
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