PTC-04-DB-CALIB Melexis Inc, PTC-04-DB-CALIB Datasheet - Page 14

• Manufacturer Part Number: PTC-04-DB-CALIB
• Description: DUAGHTER BOARD CALIBRATION
• Manufacturer: Melexis Inc
• Series: -r

Specifications of PTC-04-DB-CALIB

• Accessory Type: Calibration Software
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: PTC Programmer

Loggings
Each time a calibration check is performed and the new correction parameters are saved in the PTC-04
programmer, the old and the new parameters are logged in a file called “Calibration Log.txt”. This file is for
information purpose only and is not used by the PTC-04 programmer.
Calibration details
How does the calibration work?
ADC
In the graph below, you have two curves: the measurements of the ADC (left Y-axis) and the reference
measurements of the external voltmeter (the right Y-axis). The internal voltage source is used as supply
(Set DAC X-axis). The purpose of the calibration check is to compare the ADC with the external high
precision voltmeter.
For the check, a number of voltage values are measured to calculate the difference between the ADC of
the PTC04 and the External Voltmeter which results in to correction parameters for offset and gain.
Graph 1
User manual calibration software PTC04
UI_0PTC04AAMLX Rev. 1.35
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Calibration Software PTC04
Ca libration check ADC
ADC PTC-03
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Se t DAC
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Ext. VOLTMETER
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User Manual
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February 10
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