LM386 isn't an op amp.
An operational amplifier (op-amp) is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output.
Having gain 200 LM386 can't be called op-amp
Are you surprised?
Not at all,
show me LM386 with open loop configuration.
An ideal op-amp is usually considered to have the following properties, and they are considered to hold for all input voltages:Infinite open-loop gain (when doing theoretical analysis, a limit may be taken as open loop gain AOL goes to infinity).
If there is no LM386 with open loop configuration, than you shouldn't bring this argument (open/ close loop ) in discussion. It's not related.
It was to show you that the 200x gain for lm386 is closed loop gain.
What is "operational" means, that you can design a feedback (negative/positive) in a variety ways, to create any math "operation" - differential, integral or proportional.
The higher gain, the easier it could be done.
Device with low gain is not "operational". Just amplifier.
Every opamp has gain < 1.0x
Take some good EE101 will help.
Name your favorite opamp and I will show you how to get it to <1x (open or closed loop) gain.
Please enter a valid email to subscribe
We need to confirm your email address.
To complete the subscription, please click the link in the
email we just sent you.
Thank you for subscribing!
via Egeo 16