Question

Problem # 3 For the summing opamp circuit, assume that the opamp is powered with +15V and-15V. The input voltages are VI and V2 and the output voltage is Vout. Rf 15 V U1 R1 R2 Vout 741 V2 (A -15 V 1. Find the relation between the output Vout and the inputs VI and V2 2. Assume that RI-2kS2, R2-3 ㏀ and Rf-6kS2, Vin is a sinewave with viinpp-2V, V2DC- IV, plot Vin() and Vout(0) 3. Assume that you have Rf-10k2, and the only de battery that is available to you is a 5V. Design an amplifier that implements the function: Vout -8VI+3, Using Multisim simulate the circuit and show on the oscilloscope vin and vout and their measurements

Answer 1

ven data out a) eat between He t and U IVi. ce Know İnHa RiR2

2)

R1=2k,R2=3k V2=1V And V1= 2V pk-pk and Frequency = 1k Hz (Not given assumed value)

Circuit:-
VCC Rf 15V xsci U1. R1 P1234 T 741 V1 V2 1V Vdd 15V 0%

The input Waveform:-

Tektronix oscilloscope-XSC1 SAVE/RECALL MEASURE Tektronix TDS 2024 EIATNOSCILLOSCOPE 200 MEASURE CH2 Freq 1kHz CH2 Pk-Pk M Pos: 0s ◆USER VERTICAL POSITION POSITION POSITION POSITION CH2 Min 1.99V CH2 CURSOR 2 HELP SCROLL VOLTS/DIV VLTSJDIV VOLTSDIV VOLTS/DIv SECIDIV CH2 1ms CH2 1V M 500us CHI/OV CHỈ CH 2 30 CH 4 EXT TRIG CAT II

The Ouput Waveform:-

Tektronix oscilloscope-XSC1 SATE/RECALLMEASURE Tektronix TDS 2024 EJHTONADE OSCILLOSCOPE 300 HENUS Tek M Pos: 0s MEASURE CHt 1kHz CHI TRIG Pk-Pk POSITION POSITIONPOSITION --| + +---'---」 +- 11.9V CHỈ Period ◆ CURSOR 1 HELP SCROLL ! 1ms CHỈ Min | | ' -7.96V VOLTS/DIV VOLTS/DIV VOLTS/DIv CH1 Max 3.97V CH1 5V M 1ms CHI./OV- U CH1 CH 2 CH3 CH4 EXT TRIC POWER

3)Design:-

bot Rf TR lo K 1.5V lek U

Circuit:-

VCC 15v Rf. T. . .. . XSC1. . U1. R1 V1 . 741 Vdd -15V 1kHz 0.P

The Input Waveform:-

Tektronix oscilloscope-XSC1 SAVE/RECALLMEASURE Tektronix TDS 2024 EI TORE OSCILOSCOPE 2 MH 200 MHz HENUS MEASURE CH2 Freq 1kHz Tek M Pos: 0s TO LEVEL USER POSITION POSITION POSITION POSITION 4V CH2 Min -2V CH2 CURSORI HELP SCROLL VOLTSADIV VOLTSDIV VOLTS/DIV VOLTS/DIV --'---」 …- Period CH2 1ms CH2 1V M 500us CH1ov SU CH1 CH 2 CH 3 CH 4 EXT TRIG POWER

The Ouput Waveform:-

Tektronix oscilloscope-XSC1 SATE/RECALLMEASURE Tektronix TDS 2024 EITL STOEGE OSCI3MH M Pos: 0s MEASURE CH1 Freq kHz CH1 Pk-Pk 27.1V Tek ◆USER YERTICAL POSITION | く:POSITION POSITION POSITION CURSOR 1 HELP SCROLL Min 13.0V VOLTS/DIV | VOLTSDIV | VOLTS/DIV | VOLTSDIV 14.1V Period CH1 5V M 1ms CHI/OV CHỈ CH 2 300 CH 4 EXT TRIG CH3 CAT II ◇WER