TL071: Ceramic package to operate inside a vacuum chamber (1e-6mbar)

Hi Andreu,

why not placing the TL071 in a hermetically sealed housing?

By the way, there's another issue: In a vacuum convection cooling will no longer work! So, even an OPAMp showing the least amount of heat dissipation will dramatically heat up and get destroyed. Because of this you will need to provide adequate cooling by the help of heat conduction.

Kai

Hi Kai,

Implement a sealed housing will be very complex in our application.

I only wnat to know if the CDIP or LCCC package support's the 1e-6mbar vacuum, or if there is any other alternatives to the TL071.

Andreu

Hello Andreu,

LF411QML-SP is closest to TL071 in ceramic package.  There are more choices if searching by important parameter instead of a op amp example.

Ceramic sealed packages support full vacuum see this post: https://e2e.ti.com/support/legacy_forums/hirel/f/935/t/556427

Hello Ron,

Than you very much for the information. I looked for the suggested LF411QML-SP, but I didn't succeed to find any place to buy it.

I am still looking for a solution.

Regards,

Andreu

Andreu,

Try starting here. https://www.ti.com/guidedsupport/call-ti-support

Near the bottom of this page will be this button. Click the one the web page. Not the e2e picture

A few contact options are listed, I expect at least one will be helpful.