sensor interface with pwm output

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iladuran

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sensor with pwm output

Hi everybody!

I have to design a pressure sensor interface with a pwm output signal (open collector); the input signal comes from a wheatstone bridge.
The supply voltage is 5V and the operative temperature range is -40 to 140 °C.

Any suggestions?
 

HI ILADRUN

THE OUT PUT OF THE SENSOR GIVES YOU OUTPUT DATA VIA COMPUTRE OR THROUGH ANY DISPLAY, ALSO GET A KNOWLEDGE ABOUT THE PRESSURE SOME SORT OF PRESSURE CALIBRATOR ALSO THE DIA OF THE PRESSURE SENSOR SHOULD ALSO BE CALIBRATED THAN YOU GOT YOUR DESIRE RESULTS
 

Hi Vicky,
thanks for your reply.

The pressure sensure is a piezoresistive wheatstone bridge with a sensitivity of 2mV/V @FS. The supply voltage is 5V.
I need both an output voltage from 0.5V to 4.5V and a PWM output.

The circuit must have an offset and gain calibration and optionally a temperature drift compensation (the sensure pressure is already compensated).
 

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