Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

PVDF charge amp help

Status
Not open for further replies.

AndyBrown

New Member
I am currently trying to build a charge amp for a PVDF vibration sensor. I am using the OPA111 and have a circuit diagram, attached. I am having a problem understanding the reason for wire coming out of pin 8? And how to wire this up as it looks like it wants me to earth pin 8 and the negative op amp input.

I have never come across this before so if someone could explain, that would be great.
 

Attachments

  • pvdfchargeampopa111.JPG
    pvdfchargeampopa111.JPG
    10.5 KB · Views: 174
hi,
Its the substrate and should be connected to Common.
On your circuit pin8 is connected to the Screen of the input cable, close to the OPA111
 

Attachments

  • AAesp03.gif
    AAesp03.gif
    6.8 KB · Views: 156
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top