Good general purpose opamp with good DC specs?

speakerguy79 · 22nd October 2006, 05:25 PM

Hi guys,

I work at a small company where my group does embedded systems design/prototyping. We're looking for a good precision op amp that's easy to use and won't have anyone sneering at what we used "under the hood". Application is usually sensors & measurement, usually low frequency stuff (DC performance is important), but potentially filters and other stuff too. Cost needs to be $2-3 dollars in small (<50) quantities.

I've been looking around. Is the AD8512 a good option? It's moderately speed, FET input, precision opamp and I think the specs look decent, but was wondering what others thought. Thanks!

suzyj · 17th November 2006, 04:10 AM

We use a lot of OP177s for general DC work. They've got vanishingly low offset (20uV or so), moderately low supply current (2mA), low Ib (<2nA), low noise (~10nV/rtHz) and are reasonably cheap.

Only drawback is that they're not terribly fast.

Cheers,

Suzy

22nd October 2006, 05:25 PM	#1
speakerguy79 diyAudio Member Join Date: May 2006	Good general purpose opamp with good DC specs? Hi guys, I work at a small company where my group does embedded systems design/prototyping. We're looking for a good precision op amp that's easy to use and won't have anyone sneering at what we used "under the hood". Application is usually sensors & measurement, usually low frequency stuff (DC performance is important), but potentially filters and other stuff too. Cost needs to be $2-3 dollars in small (<50) quantities. I've been looking around. Is the AD8512 a good option? It's moderately speed, FET input, precision opamp and I think the specs look decent, but was wondering what others thought. Thanks!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
General purpose shunt regulator	Lumba Ogir	Solid State	73	12th February 2009 09:00 AM
In general, how to get good dispersion?	cuibono	Multi-Way	2	26th August 2008 07:45 AM
good link schemas an audio in general	tadiam	Solid State	8	12th November 2007 11:18 PM
to-92 general purpose	seahag	Solid State	12	5th January 2005 12:25 PM
Suggestions for good general purpose soldering station	ThingyNess	Parts	15	26th July 2002 04:54 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

17th November 2006, 04:10 AM	#2
suzyj diyAudio Member Join Date: Jan 2006 Location: Sydney	We use a lot of OP177s for general DC work. They've got vanishingly low offset (20uV or so), moderately low supply current (2mA), low Ib (<2nA), low noise (~10nV/rtHz) and are reasonably cheap. Only drawback is that they're not terribly fast. Cheers, Suzy