Hi Brian,

Thanks for your input.
The main reason I was trying to use this chip is that with only a few external components you can safely detect if the level gasoline is under a certain level.
If I got the specs correctly the chip will do all the work if you use a capacitive sensor.
For fuel level detection in my case I’m limited by the size of the sensor and I’m not allowed to change any of the inner components.
I’m working on a similar sensor to the one presented on the site you suggested.
Due to very small change in capacitance from the sensor I’m targeting higher frequencies. So my tests show that a 14 stage binary counter with built in oscillator (MM74HC4060) might just do the job.
I will need a small PIC to process the output of the divided down frequency.
Unfortunately I didn’t have the chance to work on this project lately, so I don’t have too much progress to report.
I will post my findings as soon as I will have news.

Best Regards to all PIC users,

Nick