An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slew-rate induced distortion, then the input signal level must not exceed
A. 795mV
B. 395mV
C. 79.5 mV
D. 39.5mV
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Analog Electronics
Join The Discussion
Comments ( 2 )
The action of JFET in its equivalent circuit can best be represented as a
A. Current controlled Current source
B. Current controlled voltage source
C. Voltage controlled voltage source
D. Voltage controlled current source
In a p+n junction diode under reverse bias, the magnitude of electric field is maximum at
A. The edge of the depletion region on the p-side
B. The edge of the depletion region on the n-side
C. The p+n junction
D. The center of the depletion region on the n-side
To prevent a DC return between source and load, it is necessary to use
A. Resistor between source and load
B. Inductor between source and load
C. Capacitor between source and load
D. Either A or B
SR = Av*V*2*pi*f
Av=Voltage gain=?
Desire gain = 40db(given)
20log(10^2)=40db
Av=10^2=100
SR = 2 * pi * f * v
so
v = sr/(2 * pi * f )
v= (1/us)/125600
v=1000000/125600
v=7.96v