2. A digital-to-analogue converter as shown in Figure 2 gives an output voltage in the range...
OUESTION 1 the circle convintrod Consider the circuit diagram of an 8-bit digital-to-analogue converter (more detail regarding DACs will be introduced in SU 11- 12) below with the following component values: R = 20 kΩ, R = 10 kΩ, VREF = 10 V. VF | D;=0 1.1 1.2 Derive a general equation for Vo in terms of Vref and the digital bits Di. Calculate the minimum step output voltage, Vomin, of the converter (for the digital input D = 0000...
(a) We have an analogue to digital converter (ADC) described as 8 bit, with a 3V reference and 0V offset. What is the resolution, expressed in millivolts? [2] (b) For an input voltage of 0.6V, what is the digital output value of the ADC described in (a)? Express your answer in both binary and hexadecimal. [3] (c) An industrial oven has a thermometer that outputs a voltage from 0 to 1V for a corresponding range of temperatures of 0 to...
plz do not answer it , if you do not know how to use pspice 3. Refer to Fig. 1 in the handout; obtain the circuit output in PSpice for some of the digital input combinations given in Table. 1. Assume that 5V analog input and 0V analog input correspond to a digital ‘1' and a digital .0', respectively, and that the DAC outputs are converted so that positive voltages are obtained. Also, a. What is the range, precision and...
EXERCISE 4: (30 MARKS) Given the following circuit in figure 3 of a flash analog-to-digital converter where VREF = 2.8V. Op-amp comparators Analog input Priority encoder A A 8. Parallel binary output A A A Sampling A pulses Figure 3 - Circuit of exercise 4 a) Determine the resolution of this converter. b) Determine the maximum error quantization error. c) If the sampling period is 10ms, calculate the number of bits per second bitrate) of the ADC. d) Determine the...
When designing an Analog to Digital System all of the range values for the system must be defined from input to output. This input will be used to drive a 3. PWM output signal to operate an LED. Assume the PWM is calibrated to read minimum to maximum based on the binary input range given. Potentiometer - 10 KS2 (0 degrees to 180 degrees) VDC for Potentiometer 12 V Analog Converter Module 10 bit, Vref 8 V PWM Module-8 bit,...
onsider the sampling and reconstruction system shown in the figure. x(t) IdealIdeal) D-to-C Converter Converter Assume that the sampling rates of the C-to-D and D-to-C converters are equal, and the input to the Ideal C-to-D converter is x(t) = 2 cos (2m(50)t +π) + cos(2π(150e) a. (5) If the output of the Ideal D-to-C converter is equal to the input x(t) i.e. ()2 cos (2m(50)t +7)+cos(2(150)) b. (5) If the sampling rate is fs = 250 samples/sec, determine the discrete-time...
4. Analogue to digital converter (ADC) is one of the data processing. i. Describe the term quantization errot, sample af signal i ADK i. A 9 bits ADC is used in an electronic device for the murnt of analogue signal within the range of -TV to +TV. If an an measured as +3.2V, determine the value shows by the ADC (5 marks) The Wheatstone bridge circuit shown in the following figure is used to messure the resistance of a strain...
Problem 2: Consider a buck boost converter circuits as shown in Figure 2. Buck Converter Boost Converter Switched On Switched Off 0 Figure 2. Buck Boost converter circuits (ON and OFF status) If the applied voltage was 24 Volts and it was desired to get an output voltage of 18 V for the boost, can you determine: (1) the output voltage of the boost converter, (2) the ON and OFF time ratio for the switches. Assume both switches for the...
Oil estion 2 (9%) The voltage output from a J-type thermocouple referenced 0°C is to be used to measure temperatures from 50 to 70°C. The output voltages vary linearly over this range from 2.585 to 3.649 mV 1. If the thermocouple voltage is input to a 12-bit A/D converter having a +5V range, estimate the percent quantization error in the digital value; 2. If the analog signal can be first passed through an amplifier circuit, compute the amplifier gain required...
A Digital Signal Processing system is taking at its input the following analogue signal s(t); s(t) - 20+ 20 cos(24xt)cos(xt), Where time t is expressed in ms. Part 1 - Setting the sampling frequency: (11 Marks) As a start, the system comprises only a sampler and an ideal analogue reconstructor as follows: w(t) s(t) Sampler Analogue Reconstructor s,(t) Figure a) Find the frequency spectrum S(t) of s(t) and deduce its bandwidth. You may directly use the table provided at the...