Bit Adc
A 6 bit ADC measures a 0-5v analogue signal. if the ADC reference voltage is 5v then…?
what is: the step size in volts
the percentage resolution
the input oltage level corresponding 1001101
the dynamic range of a 6 bit ADC in dB
also if a temperature sensor with an output volatge 0-5v corresponding to a temperature range of 0-100 degrees C. what accuracy (in Deg c) can be achived?
If +5 volts is full scale and zero is zero, then
000000 = 0 volts
111111 = 5 volts = octal 77 or decimal 63
step size = 5000 mV / 63 = 79.36508 mV
this is also the resolution
1001101 has 7 bits, not possible.
PS, usual practice it to make full scale 5 volts – one bit, which gives you a
nice even value per bit, in this case 5/64 = 78.125 mV
For dynamic range you need more conditions.
Best case it is from 79mV to 5 volts, or a ratio of 63
Voltage dB = 20 log 63 = 36 dB
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bit adc,
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