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ams Datasheet

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[v1-01] 2015-Oct-12

AS-MLV-P2 − Electrical Characteristics

The sensor elements operate at an elevated temperature. The

elevated temperature is realized by means of the Pt heater

which is implemented within the silicon nitride membrane. The

recommended operating temperature for the AS-MLV-P2 is

300°C, which is equivalent to an applied power of approx.

34mW at room temperature.

Figure 5:

Electrical Characteristics

Note(s):

1. This lifetime can only be reached with respect to the recommended operation of the sensor. Especially the maximum ratings during

operation have to be followed carefully. With this background, the AS-MLV-P2 is maintenance free and shall require no replacement

during specified lifetime.

2. Pt heater element operates at 300°C

Description

Value

Resistance Values

Sensor resistance range

3kΩ to 3MΩ

Typical baseline in ambient air

50kΩ to 500kΩ

Heater resistance (2)

150Ω ± 30Ω at 300°C

Absolute Maximum Supply Ratings

Power supply

50mW (very short time range)

Heater current

25mA

Heater Voltage

3.0 V

Lifetime Requirements

Expected lifetime (1)

10 years

With a minimum of

85.000 hours

On/off cycles

20.000 times

Sensor Element Response

Response from

10%

To its final value

90%

For 0 - 20 ppm CO within

< 10sec

Sensor Element Recovery

Response from

10%

To its final value

90%

Back from 20 – 0 ppm CO

< 1min

Electrical Characteristics