antknee
New Member
Hi,
I am trying to get an LM3886 opamp working on a breadboard, I thought I understood the pins but realised I don't! It isn't working, I'm having a problem understanding the difference between ground and V-, so I don't know where the pins are supposed to go.
I've attached the datasheet. Essentially I want to build the circuit in figure 1 on the first page.
I'll be using a signal generator as the input. Vin+ is pin 10, Vin- is pin 9. So i connect the red lead of the singal generator to the Vin+ input, it goes through a variable resistor and 1Kohm resistor to get there. The black lead of the signal generator goes to where exactly? Ground or V-? I'm sure they are different as |Ground| - |V-| is meant to be over 9V from the datasheet notes.
Thanks,
Antknee.
I am trying to get an LM3886 opamp working on a breadboard, I thought I understood the pins but realised I don't! It isn't working, I'm having a problem understanding the difference between ground and V-, so I don't know where the pins are supposed to go.
I've attached the datasheet. Essentially I want to build the circuit in figure 1 on the first page.
I'll be using a signal generator as the input. Vin+ is pin 10, Vin- is pin 9. So i connect the red lead of the singal generator to the Vin+ input, it goes through a variable resistor and 1Kohm resistor to get there. The black lead of the signal generator goes to where exactly? Ground or V-? I'm sure they are different as |Ground| - |V-| is meant to be over 9V from the datasheet notes.
Thanks,
Antknee.