I am trying to design a pressure sensor circuit for use in an underwater sensor. The sensing circuit will be contained within a sealed tube with available access ports. I need to select a pressure sensor that can sense up to a depth of 50m (~70psi)
I have been searching freescale, honeywell, digikey, and mouser for hours with no luck. Any suggestions would be appreciated.
Sensor must have:
Liquid media compatibility
At least 70 psi range
Temperature compensation
Height < 7mm or the sensor can stick off the edge of the board (sensor is sandwiched in between other boards)
Want:
Amplified analog / digital data (I have a uC)
Absolute pressure (I have an internal pressure sensor)
I have been searching freescale, honeywell, digikey, and mouser for hours with no luck. Any suggestions would be appreciated.
Sensor must have:
Liquid media compatibility
At least 70 psi range
Temperature compensation
Height < 7mm or the sensor can stick off the edge of the board (sensor is sandwiched in between other boards)
Want:
Amplified analog / digital data (I have a uC)
Absolute pressure (I have an internal pressure sensor)