Electronic Devices - Op-Amp Applications - Discussion
Discussion Forum : Op-Amp Applications - General Questions (Q.No. 12)
12.
How many op-amps are required to implement this equation?
Discussion:
4 comments Page 1 of 1.
Tushar said:
10 years ago
This is equation of comparator.
Deepak said:
1 decade ago
This is nothing but a differential amplifier with different resistors.
Dineshkumar said:
1 decade ago
This is the vout of the differential amplifier, just rewriting this equation, vo=((r2+r4)/(r1+r3))(r3/r2)v1-(r4/r2)v2. Thus it needs only one op-amp.
Aniruddha said:
1 decade ago
Only 1 because we can see that r3 and r2 will get cancel out and then remain a equation with non inverting gain formula both in numerator and in denominator so both cancels out to be 1. So answer is 1.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers