Need a Dual Power supply circuit diagram for an LM107 Circuit - Electronic Circuits Projects Diagrams Free

Qaiphyx · 26th August 2008, 11:55 PM

Just need to power it from a 12 volt car battery :P

Mikebits · 27th August 2008, 12:08 AM

Why are you using such an antique part? Anyways, check this link.

http://www.electro-tech-online.com/g...es-opamps.html

Qaiphyx · 27th August 2008, 12:13 AM

Quote:

Originally Posted by Mikebits

Why are you using such an antique part? Anyways, check this link.

http://www.electro-tech-online.com/g...es-opamps.html

I always do forget to check stickies. Its just what the schematic called for, Im using it for a non inverting summing amplifier. Is there a better op amp for this?

How can I adapt one of those to this circuit?

http://www.placella.com/schematics/offset.jpg

audioguru · 27th August 2008, 02:43 AM

Just about any opamp will work in that simple circuit. They need a negative supply for their output to go down to 0V.

An MC33171 or MC34071 opamp or one opamp from an LM358 or LM324 will work if its negative supply terminal is connected to 0V and it has a load resistor to 0V. Then a negative supply is not needed..

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26th August 2008, 11:55 PM	(permalink)
Qaiphyx	Need a Dual Power supply circuit diagram for an LM107 Circuit Just need to power it from a 12 volt car battery :P

27th August 2008, 12:08 AM	(permalink)
Mikebits	Why are you using such an antique part? Anyways, check this link. http://www.electro-tech-online.com/g...es-opamps.html __________________ Forget injuries, never forget kindnesses.

27th August 2008, 02:43 AM	(permalink)
audioguru	Just about any opamp will work in that simple circuit. They need a negative supply for their output to go down to 0V. An MC33171 or MC34071 opamp or one opamp from an LM358 or LM324 will work if its negative supply terminal is connected to 0V and it has a load resistor to 0V. Then a negative supply is not needed.. __________________ Uncle $crooge