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ee250_HW10

# ee250_HW10 - EE 250 Winter 2010 University of Alberta...

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1 EE 250 Winter 2010 University of Alberta HOMEWORK 10 (due Mar 22 nd , 2010) Instructor : Karthik Shankar [There are five problems in this assignment. All problems have equal weightage. Make sure your answers show the work in solving the problem. If the final answer is wrong, partial credit will be provided if the work is shown to have made progress towards the solution. Do not expect any credit if the T.A. cannot logically follow what you have put on your submitted homework. Unless otherwise mentioned, the op-amps in the problems below are ideal] 1. The figure below shows the circuit for a digital-to-analog converter (DAC). a) R f is in kilo-ohms. Find v o b) Find R f so that v o ranges from 0 to -12 V.

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2 2. Design a circuit using one ideal op-amp, whose output is v o =v 1 +3v 2 -2(v 3 +3v 4 ) where v 1 , v 2 , v 3 and v 4 are four distinct voltages. 3. Using 20 nF capacitors, design an active broadband band-pass filter that has a lower cut-off frequency of 2000 Hz, an upper cut-off frequency of 8000 Hz and a pass-band gain of 10 dB. a)
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ee250_HW10 - EE 250 Winter 2010 University of Alberta...

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