Class Homework – 2
1. (a) (b) How many bits are required to represent the number -756 in 2’s
complement binary? Express the binary number.
(b) Demonstrate the 2’s complimentary subtraction of 12-5.
2. (a) An 8-bit A/D converter has an input range of 0 to 15 V and an output in
simple binary. Find the output (in decimal) if the input is
(a) 6.42 V (b) -6.42 V (c) 12 V (d) 0V
(b) Convert Hexa decimal Number B602 to a decimal number and Binary.
Convert decimal number 246 to binary number.
3. (a) An A to D converter has an input range of ±10V. If the input is 8V, what
is the quantization error in volts and as percentage of input voltage if the
converter has 8 bits, 12 bits and 16 bits
(b). A 14 bit A to D converter is to be employed with an Iron-constantan
thermocouple. What temperature resolution can be expected with a full scale
voltage of 100 mV? Thermocouple shows 0.5 mV at 50oC and 3.052 mV at
100oC.
4. A non-inverting amplifier shown below is to be constructed with a A741C
Op. Amp. It is to have a gain of 1001 with R1=100 ohms. Assume the GBP (noninverting) = 100 kHz
(a) Specify value of the resistor R2.
(b) Sketch the Bode plot for this amplifier using specific numerical values and
indicate the cut-off frequency.