Capacitance Measurement/Comparator IC

Analog Devices makes a number of accelerometer devices. Perhaps it’s one of those.

But why do you ask? Are you trying to reverse engineer (steal) the design?

barry said:

Analog Devices makes a number of accelerometer devices. Perhaps it’s one of those.

But why do you ask? Are you trying to reverse engineer (steal) the design?

Click to expand...

Dear Barry,
Thank you for your answer. I don't think you can make an accelerometer without a sensor and I am not looking for accelerometer device. In other words, it doesn't really matter the real IC's part#. Any IC which can make low capacitance measurement and provides analog output would be sufficient too.

strahd_von_zarovich said:

Dear Barry,
Thank you for your answer. I don't think you can make an accelerometer without a sensor and I am not looking for accelerometer device. In other words, it doesn't really matter the real IC's part#. Any IC which can make low capacitance measurement and provides analog output would be sufficient too.

Click to expand...

So you're looking for a capacitance measurement chip? Try an internet search for "capacitance measurement chip". That's what I did: https://www.analog.com/media/en/technical-documentation/data-sheets/ad7745_7746.pdf

Here's another: https://www.analog-micro.com/en/products/ics/cuconverter/cav444/

Hi,

This is not pointed to the OP only, but to everyone who uploads photos.

Again I want to remind to keep on forum rules which says:
"Also format your image attachments properly, use an image resolution that is easily readable, not too big or too small and use gif, png, or jpeg extension to reduce the size of the file."

It really not hard nor difficult to do. Usually a 1024 pixel wide photo is sufficient to show all details:

Format:
Photos (images with many different colors) --> use JPG format. A color quality of 30% often is sufficient.
For diagrams, screenshots of textext ... and so on --> use PNG format. It privides best quality with low file size.

Often I read: My PC / Laptop/ cellular phone is unable to reduce file size.
Honestly every cheap cellular phone / camera I did use has a setup.
PC (different OS) .. have simple photo editing software.

Or use some online tool like: https://www.resizepixel.com/
* upload your photo
* convert to JPG (in this case)
* resize for 1024 pixel width
* compress to 100kBytes
* download.

The result is this: 4,784 kBytes PNG --> 96 kBytes JPG

It´s less than 2% of file size. But still shows all important details.

Thanks for reading

Klaus