Analog to Digital Conversion — WSU

Analog to Digital Conversion — WSU - Analog to...

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Analog to Digital Conversion Typical analog-to-digital converters can use : 8-bit conversion to divide an analog input signal into 256 different voltage levels ranging from the highest voltage level to the smallest voltage level. 10-bit conversion to divide an analog input signal into 1024 different voltage levels ranging from the highest voltage level to the smallest voltage level. 12-bit conversion to divide an analog input signal into 4096 different voltage levels ranging from the highest voltage level to the smallest voltage level. As shown below, an 8-bit converter will produce 256 different 8-bit output signals to represent each of the 256 sampled input voltage levels. For example: A throttle position sensor has a voltage that can range from zero to five volts. If you divide 5 volts into 256 pieces, each voltage increment will be 0.0195V or 20 mV. This increment can be seen on a scan-tool displaying a changing throttle position value. A 10-bit converter will produce 1024 different 10-bit output signals to represent each of the 1024 sampled input voltage
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This note was uploaded on 02/06/2012 for the course AUSV 1320 taught by Professor Johnkelly during the Winter '12 term at Weber.

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