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1 mm accuracy IC sensor

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Klemken:
Hello,



anyone knows of any distance IC sensor (max size similar to a TQFP48 package), touchless (laser, tof ,reflective,... ), with accuracy of +/- 1 mm. Distance i need to sense is 1 mm to 100 mm.

I checked ton of site but best i found in this size had accuracy of +/- 5mm. Thanks for any help in advance.



Kind regards.

SiliconWizard:
Given your size requirement, I kind of doubt you'll find anything like that.

Example of sensors that could match your accuracy/range requirements: https://www.sensopart.com/en/products/distance-sensors/distance-sensors/ft-25-ra-170-pnsul-m4m.html
Definitely not small and likely rather expensive.

Many of the usual sensors are closer to +/-5mm, and I'm personally not aware of any that would entirely fit within a TQFP48 envelope.

If you can disclose your application, we may be able to find some alternative ideas...

Yansi:
Pick your enemy:

https://www.st.com/en/imaging-and-photonics-solutions/proximity-sensors.html

Marco:
Would attaching a pattern on the other surface and using a camera be an option?

SiliconWizard:

--- Quote from: Marco on February 19, 2020, 06:20:57 pm ---Would attaching a pattern on the other surface and using a camera be an option?

--- End quote ---

For sensing distances starting from 1mm, using a camera seems a bit tough.

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