OP AMP tutorial, protections,...

pat allen · 15th January 2007, 06:33 PM

Hi, i am looking at some basic info about OP AMP external protections, ideal power supply requirements, active protections,...

I know this info can be found on the internet, but id like to hear what you have personnaly.

Explication:

i have this machine that analyses vibrations (IRD350) , it uses several op amps (LM741, 80's machine), and i dont see any kind of protections, proper supply filtering or dc compensation. Id like to improve it a bit, as it frys some time randomly the 741's. The schematic is a bit minimalistic.

Any suggestions is welcome !!

Pat Allen

pinkmouse · 15th January 2007, 07:24 PM

Download and read Op Amp Applications by Walt Jung from the Analog Designs website. All the info you will ever need.

pat allen · 15th January 2007, 07:56 PM

do you mean analog devices web site ??

pinkmouse · 15th January 2007, 08:00 PM

Oops, yes!

pat allen · 16th January 2007, 04:37 PM

I got it, thanks alot !!!

lineup · 16th January 2007, 07:43 PM

Quote:

Originally posted by pat allen
do you mean analog devices web site ??

You may also try look at Walt Jung new personal Website
In his Library he has a lot of good articles and PDF for download

http://waltjung.org/Library.html
He is adding material every now and then!

lineup

15th January 2007, 06:33 PM	#1
pat allen diyAudio Member Join Date: Dec 2004 Location: Quebec	OP AMP tutorial, protections,... Hi, i am looking at some basic info about OP AMP external protections, ideal power supply requirements, active protections,... I know this info can be found on the internet, but id like to hear what you have personnaly. Explication: i have this machine that analyses vibrations (IRD350) , it uses several op amps (LM741, 80's machine), and i dont see any kind of protections, proper supply filtering or dc compensation. Id like to improve it a bit, as it frys some time randomly the 741's. The schematic is a bit minimalistic. Any suggestions is welcome !! Pat Allen __________________ Electronic engineer for automotive market.

15th January 2007, 07:24 PM	#2
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Download and read Op Amp Applications by Walt Jung from the Analog Designs website. All the info you will ever need. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

15th January 2007, 07:56 PM	#3
pat allen diyAudio Member Join Date: Dec 2004 Location: Quebec	do you mean analog devices web site ?? __________________ Electronic engineer for automotive market.

15th January 2007, 08:00 PM	#4
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Oops, yes! __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

16th January 2007, 04:37 PM	#5
pat allen diyAudio Member Join Date: Dec 2004 Location: Quebec	I got it, thanks alot !!! __________________ Electronic engineer for automotive market.


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