MPL3115A2

Sensors

Freescale Semiconductor, Inc.

5

2

Mechanical and Electrical Specifications

2.1

Mechanical Characteristics

(1)

1.

Measured at 25°C, over 50 kPa to 110 kPa.

Ref

Symbol

Parameter

Test Conditions

Min

Typ

Max

Unit

Pressure Sensor

Measurement Range

Calibrated Range

50

110

kPa

Operational Range

20

110

kPa

2

Pressure Reading Noise

2.

Oversample (OSR) modes internally combine and average samples to reduce noise.

19

Pa RMS

1.5

Pa RMS

3

Pressure Absolute Accuracy

50 to 110 kPa

over 0°C to 50°C

-0.4

0.4

kPa

50 to 110 kPa

over -10°C to 70°C

±0.4

4

Pressure Relative Accuracy

Relative accuracy during

pressure change between

70 to 110 kPa at any constant

temperature between

-10°C to 50°C

±0.05

kPa

Relative accuracy during

changing temperature between

-10°C to 50°C at any constant

pressure between 50 kPa to 110

kPa

±0.1

5

3.

Smallest bit change in register represents minimum value change in Pascals or meters. Typical resolution to signify change in altitude is

0.3m.

4.

At 128x Oversample Ratio.

5.

Reference pressure = 101.325 kPa (Sea Level).

Barometer Mode

0.25

1.5

Pa

Altimeter Mode

0.0625

0.3

m

6

Output Data Rate

6. OST = One Shot Mode.

100

Hz

FIFO Mode

1

Hz

Temperature Sensor

Measurement Range

-40

+85

°C

8

Temperature Accuracy

@ 25°C

±1

°C

Over Temperature Range

±3

Operating Temperature Range

-40

+85

°C

10

Board Mount Drift

After solder reflow

±0.15

kPa

11

Long Term Drift

After a period of 1 year

±0.1

kPa