FDC2212: Low cost replacement of FDC2212

Zoey Wu

Expert 5805 points

Part Number: FDC2212
Other Parts Discussed in Thread: FDC2214, FDC2112, FDC1004

Hi team,

Could u give me a recommendation to replace FDC2212?

One of my customer want to use FDC2212 to test the capacitance change from 5pF to 20pF between two metal chips.

over 3 years ago

+1 Justin Beigel over 3 years ago

TI__Mastermind 18545 points

Hello,

Depending on the resolution they need, you could use the FDC2112 instead. The FDC2112 operates at a faster sample rate but has less resolution than the FDC2212. If not, the FDC2214 is just a 4 channel version of the FDC2212. If using the FDC2214, you can leave the unused channels disconnected and make sure they are not used in the device settings.

Best Regards,

Justin Beigel

0 Zoey Wu over 3 years ago in reply to Justin Beigel

TI__Expert 5805 points

Hi Justin,

Thanks for your reply!

Do u have any other low cost replacement?

+1 Justin Beigel over 3 years ago in reply to Zoey Wu

TI__Mastermind 18545 points

Hello,

The other capacitive sensor we have to offer is the FDC1004, but it is a different architecture and would require a different design approach than the previously mentioned devices.

See the following posts for more information about the differences:

Best Regards,
Justin Beigel

0 Zoey Wu over 3 years ago in reply to Justin Beigel

TI__Expert 5805 points

Hi Justin,

Thanks for your reply!

+1 Justin Beigel over 3 years ago in reply to Zoey Wu

TI__Mastermind 18545 points

You're welcome. Let us know if you have any other questions.

Best Regards,

Justin Beigel

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FDC2212: Low cost replacement of FDC2212