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Hello Daniel,
I hope all is great with you. Thank you for using the NXP communities.
Please note that it is recommended to supply the device with Vdc.
This is not a passive device. Internally, it features a Temperature Compensation and Calibration Circuitry. So I do not recommend supplying the device with Vac.
I hope this information helps.
Regards,
David
Hello Daniel,
I hope all is great with you. Thank you for using the NXP communities.
Please note that it is recommended to supply the device with Vdc.
This is not a passive device. Internally, it features a Temperature Compensation and Calibration Circuitry. So I do not recommend supplying the device with Vac.
I hope this information helps.
Regards,
David
Hello David,
many thanks for a clear and simple advise/explanation. So my simple measurements with an ohm-meter deceived me. The internal compensation circuitry may contain diodes, not just semiconductor resistances. I saw another barometer design which uses a low 1.5V 1 Hz pulsed excitation voltage for low current consumption in the bridge circuit.
So positive pulsed may be ok and must fulfill my ideas...
sincerely, Christian