circuit with +1 and -1 gain

[hock]

i remember sone one had posted a circuit which could provide a gain of +/-1 sometime back .
dose any one remembers the circuit?

hock

 

[IanP]

It can be done with dual opamp IC connected as shown in the attached cartoon ..

Rgds,
IanP

 

[karesz]

Hi hock,
Are you viewing for so a solution or with switched /controlled gains between +1 to -1?
K.

 

[FvM]

Do you mean this classical circuit?

 

[karesz]

Yea, I think he does searching for that...
K.

 

[Prototyp_V1.0]

Her's the thread toping you're looking for:

 

[hock]

thanks all this was the circuit i was looking for.

hock