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The circuit in the Gray Box below is an interface circuit to an ADC operated from a single-3V supply. It outputs 2Vpp when the input signal is 8Vpp. The output signal is centered at 1.5V
1) Determine the Values of Resistors R1 and R2.
2) Determine the Minimum Acceptable value for the coupling capacitor C if the lowest frequency of the incoming signal is 1.2kHz.
3) What type of op-amp would you choose & why? Explain.
Find the gain in decibels of an amplifier that has a straight gain of 7000? Find the current in a ground loop that is 200 m long, has a wire resistance of 0.06 ohms/m, and has a difference of 4 V between grounds?
A sequential circuit with two D flip flops, A and B; two inputs x and y; and one output z, specified by the following next state and output equations. An+1 = ¯y + xAn Bn+1 = ¯Bn + xAn Z = Bn (a) Draw the logic diagram of the circuit (b) Derive the..
A long wire carrying a 5.0 A current perpendicular to the xy-plane intersects the x-axis at . A second, parallel wire carrying a 3.0 A current intersects the x-axis at .
(a) the conductivity in a p type silicon semiconductor at T=300 K is sigma=0.25 (ohm-cm)^-1. Determine the thermal equilibrium values of electron and hole concentrations. (b) Repeat part (a) for n type GaAs semiconductor if the resistivity is rho=..
For the system specified by the following difference equation, compute the first five samples of the response to the input given as x(n)=e^-0.4n u(n-1). The system is initially at rest. y(n)=y(n-1)-2y(n-2)+x(n)-0.8x(n-1)
The nickel- cadmium (nicad) battery is a secondary battery, meaning it can be recharged. it has the following reactions occuring during discharge: A nicad battery has .87 g of cadmium, which is the limiting reactant.
A point charge of 20nC is located at (4,-1,3), and a uniformline charge of -25nC/m lies along the intersection of the planesx=-4 and z=6. (a) Calculate D at (3,-1,0). (b) How much electric flux leves the surface of a sphere of radius 5,centered at..
Assuming a bandwidth of 2 MHz, find the rms noise voltage across the output terminals of the circuit shown in Figure A.9 if it is at a temperature of 400 K.
Consider an oxide-to-n-type silicon junction at room temperature. The impurity doping concentration in the silicon is Nd=8 x 1015 cm-3. Calculate the maximum space charge width in the silicon.
Need the coding for the circuits and its a intelligent fan controller based on temperature?
A digital communication link carries binary-coded words representing samples of an input signal xa(t) = 3 cos 600pt + 2 cos 1800p.The link is operated at 10,000 bits/s and each input sample is quantized into 1024 different voltage levels.
A process worker received an electric shock when she attempted to turn off a conveyer control. The toggle switch controlled the power to a variable speed drive. An examination found that dust had accumulated on the toggle switch. Moisture on the ..
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