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ZMD31050
Advanced Differential Sensor Signal Conditioner
Application Note PRELIMINARY
4. Calibration Examples
4.1 Conditioning a Pressure Signal
4.2 Conditioning a Temperature Signal
4.3
1st step - acquire calibration data
temperature out calibration target:
• 0.5V at 0deg = 10%
• 4.5V at 100deg = 90%
and/or digital:
• 3277 (10% of 32768) at 0deg
• 29491 (90% of 32768) at 100deg
--- room temperature = 25deg
OW_78001D9 => acquiring T1
OR_78002 => you get first acquired raw data for current temperature calibration point now (1) in example: 1000
--- change of temperature =50deg
OW_78001D9 => acquiring T1
OR_78002 => you get second acquired raw data for current temperature calibration point now (2) in example: 2000
=> calculate coefficients now and write calibration data to RAM/EEPROM
OW_7800102 => start cycle RAM
OR_78004 => readout of 4 bytes, @ 25deg you should read 9830
Temperature-Calibration Example