I have the following problem:
Consider that the product between the gain-bandwith of an OpAmp is 1Mhz.Design a circuit that has a 34dB with a bandithw of 50 khz..
I have no idea how to solve this.The gain in dB is given by \(20*log(Vout)/(Vin)=34dB\)...How can i determine Vin with the data given?
\(
w*Vomax=SR
2*pi*fomax*vomax=SR
fomax=SR/(2*pi*vomax)
\)
Question 2)If an OpAmp has a diferential gain Ad=10^4 and a comon gain Ac=10^-1 and a error of about 10% when the output tension is 2.5V
Determine Vc and Vd in the input (Comon voltage and diferential voltage)
So i know that \( Vo=Ad(Vp-Vn)-Ac((Vp-Vn)/2)\)
I believe i need another equation in order two find the two variables Vc and Vd
The info that the error is 10% when Vin=2.5 V does that tell me that Vp-Vn=0.10
Question 3)Consider an OpAmp with SR=4V/micro second
Calculate the maximum frequency that a 5v sinusoide may have in order to be amplified without SR distortion
*\(
w*vomáx=SR
2pi*f*5=4*10^6
f=127,3385 kHZ
f<=127,3385 kHZ
\)
is that it?
Thanks
Question 4) If we increase the resistor in a integrator circuit what happens(the resistor of RC constant)
I believe that the frequency of integration increases..And what else?
Question 5) What happens if we increase the resistor R(not the feedback resistor the other) in a hysteresis comparator that is whose output is conected to the capacitor of a integrating circuit?It increseases the integrating period?
Thanks
Consider that the product between the gain-bandwith of an OpAmp is 1Mhz.Design a circuit that has a 34dB with a bandithw of 50 khz..
I have no idea how to solve this.The gain in dB is given by \(20*log(Vout)/(Vin)=34dB\)...How can i determine Vin with the data given?
\(
w*Vomax=SR
2*pi*fomax*vomax=SR
fomax=SR/(2*pi*vomax)
\)
Question 2)If an OpAmp has a diferential gain Ad=10^4 and a comon gain Ac=10^-1 and a error of about 10% when the output tension is 2.5V
Determine Vc and Vd in the input (Comon voltage and diferential voltage)
So i know that \( Vo=Ad(Vp-Vn)-Ac((Vp-Vn)/2)\)
I believe i need another equation in order two find the two variables Vc and Vd
The info that the error is 10% when Vin=2.5 V does that tell me that Vp-Vn=0.10
Question 3)Consider an OpAmp with SR=4V/micro second
Calculate the maximum frequency that a 5v sinusoide may have in order to be amplified without SR distortion
*\(
w*vomáx=SR
2pi*f*5=4*10^6
f=127,3385 kHZ
f<=127,3385 kHZ
\)
is that it?
Thanks
Question 4) If we increase the resistor in a integrator circuit what happens(the resistor of RC constant)
I believe that the frequency of integration increases..And what else?
Question 5) What happens if we increase the resistor R(not the feedback resistor the other) in a hysteresis comparator that is whose output is conected to the capacitor of a integrating circuit?It increseases the integrating period?
Thanks
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