Reference no: EM131075022
All the questions are weighted equally
1. Design a summing amplifier based on a 741 IC chip. The amplifier has Rf = 1 M 0, RI = 100 KO, R2 = 50 KO, and R;= 10 KO. The input voltages are VI= 100 mV sin (2000 t), and V. = 150 mV sin (3000 t), and l'3 = 200 mV sin (1000 t). Draw the summing amplifier sketch and develop an equation for its output voltage 'o in terms of the given inputs.
2. What is a voltage buffer? How does it work? Draw a sketch to show how you will use voltage buffers to provide two separate outputs from one input signal.
3. Compute the output voltage of a noninverting op-amp circuit for the input voltage I '1= 8 Volts , R/= 1 MO, and RI = 50 KO. Sketch this amplifier circuit and show your calculations.
4. Calculate the cutoff frequency of a first-order low pass filter having RI = 3.4 KU and Ct = 0.01 pF. Show your calculations and draw a sketch of this low-pass active filter.
5. Compute the cutoff frequency of an op-amp based second-order high-pass filter having RI = R2 = 3.7 KO, Ct = C2 = 0.01 pF, Ra = 50 KO, and R; = 100 KO. Show your calculations and draw a sketch to show this high-pass active filter.
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: 1. Design a summing amplifier based on a 741 IC chip. The amplifier has Rf = 1 M 0, RI = 100 KO, R2 = 50 KO, and R;= 10 KO. The input voltages are VI= 100 mV sin (2000 t), and V. = 150 mV sin (3000 t), and l'3 = 200 mV sin (1000 t). Draw the summi..
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