Question

In a differential amplifier, the noninverting input is 3cos(600t + 45°) mV and the inverting input...

In a differential amplifier, the noninverting input is 3cos(600t + 45°) mV and the inverting input is 4cos (600t - 45°) mV. The output is vo = 3cos (600t + 45°) + 4.004cos (600t - 45°) V. The CMRR is of? The unit must be in dB.

Homework Answers

Answer #1

The input v1 in polar form is 3<45>.
The rectangular form is
v1 = 2.1213 + 2.1213i


The input v2 in polar form is 4<-45>.
The rectangular form is
v2 = 2.8284 - 2.8284i

vc=(v1+v2)/2=(2.1213 + 2.1213i+2.8284 - 2.8284i)/2= 2.4749 - 0.3536i

vd=v1-v2 = -0.7071 + 4.9497i

The output in polar form is v0= 3<45>+4.004<-45>

For 3<45>,

v01 = 2.1213 + 2.1213i

For 4.004<-45>


v02 = 2.8313 - 2.8313i

v0=v01+v02 = 4.9526 - 0.7099i

Ad=|v0/vd|= 1.0006

Ac=|v0/vc|= 2.0013

CMRR=20*log10(Ad/Ac)= -6.0206dB

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a differential amplifier, the noninverting input is 3 cos (600t + 45◦ ) mV and...
In a differential amplifier, the noninverting input is 3 cos (600t + 45◦ ) mV and the inverting input is 4cos (600t - 45◦ ) mV. The output is vo = 3cos (600t + 45◦ ) + 4.004cos (600t - 45◦ ) V. The CMRR is _____________ dB.
In a differential amplifier, the non-inverting input is 3cos (600t + 45◦) mV and the inverting...
In a differential amplifier, the non-inverting input is 3cos (600t + 45◦) mV and the inverting input is 4cos (600t - 45◦) mV. The output is vo = 3cos (600t + 45◦ ) + 4.004cos (600t - 45◦ ) V. The CMRR is _____dB.
In a differential amplifier, the noninverting input is 3 cos (600t + 45◦) mV and the...
In a differential amplifier, the noninverting input is 3 cos (600t + 45◦) mV and the inverting input is 4cos(600t - 45◦) mV. The output is vo = 3cos (600t - 45◦) + 4.004cos (600t - 45◦) V. The CMRR is ______dB?
In a differential amplifier, the noninverting input is 3 cos (600t + 45◦) mV and the...
In a differential amplifier, the noninverting input is 3 cos (600t + 45◦) mV and the inverting input is 4cos(600t - 45◦) mV. The output is vo = 3cos (600t + 45◦) + 4.004cos (600t - 45◦) V. The CMRR is _____dB?
In a differential amplifier, the non-inverting input is 3 cos (600t - 45 ° ) mV...
In a differential amplifier, the non-inverting input is 3 cos (600t - 45 ° ) mV and the inverse input is 4cos (600t - 45◦ ) mV. The output is vo = 3cos (600t - 45◦ ) + 4.004cos (600t - 45◦ ) V. The CMRR is _______ dB.
Numeric responses must be either an integer (if exact) or a real number with three decimal...
Numeric responses must be either an integer (if exact) or a real number with three decimal places, with the least significant number rounded. Do not use commas. If there are units, the integer part must be between 1 and 999. Use the following units: Ohm, kOhm, mOhm resistors, etc. Conductances: S, mS, MS, etc. Voltage: V, kV, mV, MV, etc. Current: A, mA, kA, uA, nA, etc. Power: W, mW, kW, uA, pW, etc. Time: s, hrs, ks, ms, etc....
1. Design an inverting amplifier with gain of ×10, and input impedance of 100Ω. 2. Design...
1. Design an inverting amplifier with gain of ×10, and input impedance of 100Ω. 2. Design a non-inverting amplifier with a gain of ×10. Design the amplifier so that the output current from the op-amp at maximum output voltage +15V is no larger than 15 mA. 3. Design a current summing amplifier that finds the algebraic sum of two input voltages: VOUT = - (V1 + V2) . Design the amplifier so that output current from the op-amp at maximum...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT