Unity Gain Operation (or low gain) - Page 2

Tomo · 20th January 2004, 12:31 AM

Hi,

I read the paper and I realized something. Appearently, this method reduce the actual "signal" gain to unity, however, noise gain stays at the minimum gain within some certain bandwidth.

That means G=10 applied to noise, but the signal goes through without gain. I am worried that such increase in noise level may be very bad ...

Help me, oh so great ones of the hall of wise!

Tomo

carlosfm · 21st January 2004, 01:05 PM

Tomo,

The OPA power op-amps from Burr-Brown are unity-gain stable.
No fuss.
You can try the OPA548.

Tomo · 22nd January 2004, 01:47 AM

Hi,

Thanks, Carlo. I will go for those. Very cool that I can adjust current.

Tomo

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
opamps used for unity gain	HiFiNutNut	Solid State	25	12th April 2011 02:34 PM
Confusion: NFB, OLG, Unity Gain	corrieb	Solid State	32	9th October 2010 12:57 PM
Unity gain inverter	emogstad	Chip Amps	1	10th June 2009 03:09 PM
Heretical Unity Gain line stage PLUS a little gain ?	yagas	Tubes / Valves	7	24th January 2006 01:30 PM
Unity Gain (AV=1) Zen Amp	LS	Pass Labs	2	16th September 2004 04:40 AM

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

20th January 2004, 12:31 AM	#11
Tomo diyAudio Member Join Date: Jun 2002	Hi, I read the paper and I realized something. Appearently, this method reduce the actual "signal" gain to unity, however, noise gain stays at the minimum gain within some certain bandwidth. That means G=10 applied to noise, but the signal goes through without gain. I am worried that such increase in noise level may be very bad ... Help me, oh so great ones of the hall of wise! Tomo

21st January 2004, 01:05 PM	#12
carlosfm Banned Join Date: Mar 2003 Location: Lisbon, Portugal	Tomo, The OPA power op-amps from Burr-Brown are unity-gain stable. No fuss. You can try the OPA548.

22nd January 2004, 01:47 AM	#13
Tomo diyAudio Member Join Date: Jun 2002	Hi, Thanks, Carlo. I will go for those. Very cool that I can adjust current. Tomo