Microcontroller homework for week 04
1. SNR -
Ratio of RMS
signal to RMS
SINAD - Ratio of the RMS signal amplitude to the
mean value of the
root -sum-
square (RSS)
ENOB - The effective number-of-
bits and relates to SINAD
THD - Ratio of the rms value of the
fundamental signal to the mean value of the RSS
of its harmonics.
SFDR - Ratio of the RMS value of the signal to the RMS value of the worst spurious
signal.
Channels related to the inputs of the ADC can either be multiplexed or individually
selected.
Linearity relates to how a ADC follows a linear
function . All ADCs are to a certain
extend non-linearity.
Temperature is measurement, which in optimal state for ADC-s, lets them function
correctly.
Power dissipation refers to the
amount power dissipated when the ADC is
operating .
2. The output code is
001111012 and the
voltage of the LSB is
0,0195V
3. The output code is
101011101101100
4. The value of the quantization
error between an input
voltage of 2.3V and quantized
voltage with the output code word equal to 01110101 using an 8 bit ADC with 5V
reference is
0.01484375V
5. 13 Bit ADC
6. The circuit diagram:
7. The run-up phase
takes 400 µs, the run-down phase takes
1 ms.
8. a) MAX1200 pipeline ADC -
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