Examveda

# An OPAMP has a slew rate of 5 V/μ S .The largest sine wave O/P voltage possible at a frequency of 1 MHZ is[Hint: Slew rate is defined as the max. rate of change of output voltage. Its unit is V/μS.]

A. 10 volts

B. 5 volts

C. 5/1 volts

D. 5/2 volts

1. I'm getting 5v.
Isn't slew rate the maximum voltage change possible per second(or here us).
So the maximum change in voltage the sin wave can have is 5v/us.
if i differentiate the sin wave( A*sin(10^6*t) ):
I get A*10^6cos(10^6*t)
The maximum change in voltage is when cos()=1.
Thus,
A*10^6

2. 5/2pi
formula is
SR = 2 * pi * f * Vo