This is a classic solution from the stone age. You can find it in application notes from National from the 80's. Nothing you will do today since the opamps got much better.
Give me some link
Please Mr.perander send me some link which used this schematic.
I find all of same as this method but I never seen about this ?!?
Thanks
Please Mr.perander send me some link which used this schematic.
I find all of same as this method but I never seen about this ?!?
Thanks
You have a wonderful description of this paleolithic circuit in Walt Jung's "op amp applications" -- should be on everyone's bookshelf.
Re: Give me some link
http://www.national.com/an/AN/AN-222.pdf
There is also an app note in an old Siliconix application book but it's hardly to befound on the net. I have this app note somewhere. The idea is the same as the link above but JFET's were used and the opamp was NE5534.
http://www.analog.com/library/analogDialogue/archives/39-05/op_amp_applications_handbook.html
http://focus.ti.com/lit/an/slod006b/slod006b.pdf
rubydac said:
http://www.national.com/an/AN/AN-222.pdf
There is also an app note in an old Siliconix application book but it's hardly to befound on the net. I have this app note somewhere. The idea is the same as the link above but JFET's were used and the opamp was NE5534.
http://www.analog.com/library/analogDialogue/archives/39-05/op_amp_applications_handbook.html
http://focus.ti.com/lit/an/slod006b/slod006b.pdf
- Status
- Not open for further replies.