DDC114

MARK FRANKLIN

Prodigy 30 points

Other Parts Discussed in Thread: DDC114

Does this IC require special PCB material, layout or standoffs?

over 16 years ago

0 Rick Downs - WEBENCH Design Center over 16 years ago

TI__Expert 5515 points

The DDC114 does not require the use of special PCB material or things like teflon standoffs. Layout is important, however, to assure precision. Suggest you look at the board used in the DDC11xEVM-PDK to see how we approached the layout. The layout is shown in the user guide for this EVM, which you can download from the linked page.

0 MARK FRANKLIN over 16 years ago in reply to Rick Downs - WEBENCH Design Center

Prodigy 30 points

I have never worked at femtoamp level before.

Does TI offer any app notes on this tpic?

Recommended cleaning methods; known issues to watch; best practices; etc.?

0 Rick Downs - WEBENCH Design Center over 16 years ago in reply to MARK FRANKLIN

TI__Expert 5515 points

There's not an app note that I'm aware of - there are some guidelines discussed in the OPA128 datasheet. Yes, flux can be a big problem, so clean boards are essential to eliminate leakage paths, as is good layout. Again, I'd suggest you look at the EVM and duplicate the layout as closely as possible.

Data converters

Data converters forum

DDC114