Data Sheet
Table Of Contents
- General Description
- Pin Assignment
- Environmental Specifications
- Electrical Characteristics
- Detailed Description
- Application Information
- Mechanical Information
- Soldering Information
- Ordering & Contact Information
- RoHS Compliant & ams Green Statement
- Copyrights & Disclaimer
- Document Status
- Revision Information
- Content Guide
ams Datasheet Page 11
[v1-01] 2015-Oct-12 Document Feedback
AS-MLV-P2 − Application Information
Heater Calibration
As mentioned in the previous chapter the each sensor has its
own set-point at the operation temperature. This set-point can
be determined by a previous calibration step. This means that
the AS-MLV-P2 is started at room temperature (23°C ± 3°C) and
powered with 34mW. With these conditions the heater
resistance is measured and stored into the EEPROM. This heater
resistance is the certain set-point which is kept constant with
the regulating PWM during operation.
General Characteristics
The sensor has some native characteristics which should be
considered in the application development.
Burn-In Behavior
Once in lifetime the sensor performs a special burn in behavior,
this curve is characterized in three phases which are described
with the following figure.
Figure 12:
Burn-In of Sensor
Description Duration
Phase 1 Fast increase of the sensor resistance ~ 10 hours
Phase 2 Plateau with nearly stable baseline ~ 12 hours
Phase 3 Long drift like decrease of the sensor resistance > 4 days