what is best for an op amp?

tadiam · 14th December 2008, 05:27 PM

I need ai idea for an power supply for an op amp.

Lm317/337 series
7812/7912 series
or elaborate circuit....no zener....

I put an battery an sound clear and sweet..have an similar result with p/supply?

peranders · 14th December 2008, 05:32 PM

The PS you'll need is very dependent what the opamps do.

tadiam · 14th December 2008, 05:55 PM

lf351...tl071

AndrewT · 14th December 2008, 06:30 PM

decouple all opamps at the chip pins as directed by the manufacturer.

ostripper · 14th December 2008, 06:46 PM

Lm317/337 series have much better ripple characteristics than
78XX series.
As andrew t. pointed out decoupling at regulator and device
is critical..
OS

benchtester · 14th December 2008, 08:41 PM

I like the Linear Technology LT1086 through LT1083 series. What do other people think about these?

High performance - low noise alternatives are shown in Fig. 8 here:
http://cache.national.com/ds/LM/LME49600.pdf

Made with a headphone buffer inside a LME49710 op amp loop.

tadiam · 15th December 2008, 09:44 AM

http://www.diyaudio.de/html/battery_amplifiers.html

how work this regulator...only pre

maxpou · 15th December 2008, 02:11 PM

Hi Tadiam,
look at this adress maybe you can be interested.

http://www.diyaudio.com/forums/showt...729#post345729

Maxpou

tadiam · 16th December 2008, 10:16 AM

thanks

14th December 2008, 05:27 PM	#1
tadiam diyAudio Member Join Date: Mar 2007	what is best for an op amp? I need ai idea for an power supply for an op amp. Lm317/337 series 7812/7912 series or elaborate circuit....no zener.... I put an battery an sound clear and sweet..have an similar result with p/supply? __________________ audio

14th December 2008, 05:32 PM	#2
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	The PS you'll need is very dependent what the opamps do. __________________ /Per-Anders (my first name) or P-A as my friends call me

14th December 2008, 05:55 PM	#3
tadiam diyAudio Member Join Date: Mar 2007	re lf351...tl071 __________________ audio

14th December 2008, 06:30 PM	#4
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	decouple all opamps at the chip pins as directed by the manufacturer. __________________ regards Andrew T.

15th December 2008, 09:44 AM	#7
tadiam diyAudio Member Join Date: Mar 2007	re re http://www.diyaudio.de/html/battery_amplifiers.html how work this regulator...only pre __________________ audio


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14th December 2008, 06:46 PM	#5
ostripper diyAudio Member Join Date: May 2008 Location: Albany , NY (smallbany)	Lm317/337 series have much better ripple characteristics than 78XX series. As andrew t. pointed out decoupling at regulator and device is critical.. OS

14th December 2008, 08:41 PM	#6
benchtester diyAudio Member Join Date: Apr 2007 Location: Oakland, Calif.	I like the Linear Technology LT1086 through LT1083 series. What do other people think about these? High performance - low noise alternatives are shown in Fig. 8 here: http://cache.national.com/ds/LM/LME49600.pdf Made with a headphone buffer inside a LME49710 op amp loop.

15th December 2008, 02:11 PM	#8
maxpou diyAudio Member Join Date: Apr 2006 Location: Québec	Hi Tadiam, look at this adress maybe you can be interested. http://www.diyaudio.com/forums/showt...729#post345729 Maxpou

16th December 2008, 10:16 AM	#9
tadiam diyAudio Member Join Date: Mar 2007	re thanks __________________ audio

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