PROBLEMS ANSWERS:
1. 2.4 mV, For A/D of 4.3 V, the number of steps = 1792 decimal, which converts into
011100000000 binary
2. Step size is 19 mV, analog sample value is 181 * 0.019 = 3.44 V
CHAPTER 5
QUIZ ANSWERS:
1. b) A series of pulses that is proportional to the amplitude of the medical signal
2. a) The number of bits per sample
3. b) 4.375 V
Total number of samples for two minutes = 6400 samples/sec * 120 sec = 768,000
samples.
Aliasing is when the sampling is done at less than the Nyquist rate, such as sampling at 6
kHz.
6. The R/2R ladder network for 100000 is 2.5 V. Then 010000 will result in half of 2.5 V
as binary one shifts right. The circuit then produces 1.25 V.