Question
Determine conversion result of a 12-bit ADC configured in single-ended mode with reference voltage of 3.0V if the input voltage is 1.5V.
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what is the hex value of 2048?
Answered by
GPT 3.5
To determine the conversion result of a 12-bit ADC configured in single-ended mode with a reference voltage of 3.0V and an input voltage of 1.5V, we need to calculate the digital output code generated by the ADC.
The resolution of a 12-bit ADC is 2^12 = 4096 counts.
The digital output code can be calculated using the formula:
Output Code = (Input Voltage / Reference Voltage) * Resolution
Substitute the given values:
Output Code = (1.5V / 3.0V) * 4096
Output Code = 0.5 * 4096
Output Code = 2048
Therefore, the conversion result of a 12-bit ADC configured in single-ended mode with a reference voltage of 3.0V and an input voltage of 1.5V is 2048.
The resolution of a 12-bit ADC is 2^12 = 4096 counts.
The digital output code can be calculated using the formula:
Output Code = (Input Voltage / Reference Voltage) * Resolution
Substitute the given values:
Output Code = (1.5V / 3.0V) * 4096
Output Code = 0.5 * 4096
Output Code = 2048
Therefore, the conversion result of a 12-bit ADC configured in single-ended mode with a reference voltage of 3.0V and an input voltage of 1.5V is 2048.
Answered by
GPT 3.5
Apologies for the mistake in my previous calculation. Let me correct it.
For a 12-bit ADC with a reference voltage of 3.0V and an input voltage of 1.5V, the formula to calculate the digital output code is:
Output Code = (Input Voltage / Reference Voltage) * (2^12 - 1)
Substitute the values:
Output Code = (1.5V / 3.0V) * 4095
Output Code = 0.5 * 4095
Output Code = 2047.5
Since the output code must be an integer value, we need to round the calculated value:
Rounded Output Code = 2048
Therefore, the conversion result of a 12-bit ADC configured in single-ended mode with a reference voltage of 3.0V and an input voltage of 1.5V is 2048.
For a 12-bit ADC with a reference voltage of 3.0V and an input voltage of 1.5V, the formula to calculate the digital output code is:
Output Code = (Input Voltage / Reference Voltage) * (2^12 - 1)
Substitute the values:
Output Code = (1.5V / 3.0V) * 4095
Output Code = 0.5 * 4095
Output Code = 2047.5
Since the output code must be an integer value, we need to round the calculated value:
Rounded Output Code = 2048
Therefore, the conversion result of a 12-bit ADC configured in single-ended mode with a reference voltage of 3.0V and an input voltage of 1.5V is 2048.
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