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Suppose we need an amplifier with input resistance of 500 kO or greater and a voltage gain of -10. The feedback resistors are to be implemented in integrated form and have values of 10 kO or less to conserve chip area. Assume any amplifiers used are ideal.a. Prove and explain why a single inverting op amp will not work for this designb. Choose a suitable circuit configuration and specify the resistance values (hint: use cascaded op amps!)
A sinusoidal voltage wave of real amplitude B0, and frequency w, and phase constant B, propogate in the forward z direction toward the shorted load end in a lossless transmission line of characteristic impedance Z0.
A test charge q located at the origin is displaced by a distance l
Why is pulse shaping filtering indispensable in wireless communications applications. Give three reasons why pulse shaping filters are used and in what points of the communications link they may be deployed.
if the energy strored in the fully charged battery is used to lift the battery with 100% efficiency, what height is attained. Assume that the acceleration due to gravity is 9.8 m/s^(2) and is constant with height.
A 460-V, three-phase,60-Hz system supplies power to a 10-kVA, delta-connected resistor load; a 50-kVA, 0.86 power factor induction motor, and a wye-connected synchronous motor that is operating at 0.62 power factor leading
A particular inverting amplifier with nominal gain of -100 V/V uses an imperfect op amp in conjunction with 100-k-ohm and 10-M-ohm resistors. The output voltage is found to be +9.31 V when measured with the input open and +9.09 V with the input groun..
Design an active low pass filter with a cutoff of 10kHz or more by more than 30db and have the pass band gain positive that does not deviate from 20db by more than 3 db. The pass band frequncy need is 800Hz and below.
A decade counter uses Gray code. The counter has 4 FFs with outputs labeled A,B,C,D. Derive the simplest SOP excitation equation for the counter if it uses D FFs, then repeat for JK FFs.
A piston-cylinder device initially contains 1 m of nitrogen gas at 400kpa and 27 c. A resistance heater is turned on inside the cylinder which passes 70 kj of electricity to the nitrogen gas.
the doping level of N-type semiconductor is ND = 5x10^19 cm^-3. Determine the room-temperature position of the Fermi level (with respect to the borrom of the conduction band) if the semiconductor is Si (Nc = 2.86x10^19).
A balanced three-phase load is connected to a balanced three-phase supply via a transmission line. What must be the readings on the two wattmeters, the ammeter, and the voltmeter
A panasonic model Rx-ft560 stero uses a 12V_dc powwer supply. At full volume ( max triple min-bass) A max current of 1.4 amps is needed from the power supply. at min volume, this drops to 200mA. (hint: calculate the range of R_L)
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