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Pressure
Freescale Semiconductor
Miniature I 2 C Digital Barometer
The MPL015A2 is an absolute pressure sensor with digital output for low cost
applications. A miniature 5 x 3 x 1.2 mm LGA package ideally suits it for portable
electronics and space constrained applications. Low current consumptions of
5 μ A during Active mode and 0.06 μ A during Shutdown (Sleep) mode target
battery and other low-power applications. A wide operating temperature range
from -40°C to +105°C fits demanding environmental requirements.
MPL015A2 employs a MEMS pressure sensor with a conditioning IC to provide
MPL015A2
Rev 1, 12/2010
MPL015A2
50 to 115 kPa
Application Examples
accurate pressure measurement from 50 to 115 kPa. An integrated ADC provides
digitized temperature and pressure sensor outputs via an I 2 C port. Calibration
Data is stored in internal ROM. Utilizing raw sensor output, the host
microcontroller executes a compensation algorithm to render Compensated
Absolute Pressure .
The MPL015A2 pressure sensor ’s small form factor, low power capability,
precision, and digital output optimize it for barometric measurement applications.
Features
? Digitized pressure and temperature information together with programmed
calibration coefficients for host micro use.
? Factory Calibrated
? 50 kPa to 115 kPa Absolute Pressure
? 1 kPa Accuracy
? 2.375 V to 5.5 V Supply
? Integrated ADC
? I 2 C Interface
? Monotonic Pressure and Temperature Data Outputs
? Surface Mount RoHS Compliant Package
ORDERING INFORMATION
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?
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Barometry (portable and desk-top)
Altimeters
Weather Stations
Hard Disk-Drives (HDD)
Industrial Equipment
Health Monitoring
Air Control Systems
Device Name
Package Options
Case No.
None
# of Ports
Single
Dual
Gauge
Pressure Type
Differential
Absolute
Digital
Interface
MPL015A2T1
Tape & Reel
2015
?
?
I 2 C
LGA PACKAGE
Pin Description
PIN
1
2
NAME
VDD
CAP
FUNCTION
VDD Power Supply Connection.
External Capacitor
MPL015A2
5.0 mm X 3.0 mm X 1.2 mm MAX
3
4
5
GND
SHDN
RST
Ground
Shutdown (Sleep): Connect to GND to disable the device.
Reset: Drive line low to disable I 2 C communications.
VDD
CAP
GND
1
2
3
8
7
6
SCL
SDA
NC
6
7
8
NC
SDA (1)
SCL (1)
NC: No connection.
SDA: Serial data I/O line.
I 2 C Serial Clock Input.
SHDN
4
5
RST
1. Use 4.7k pull-up resistors for I 2 C communication.
PIN CONNECTIONS
? Freescale Semiconductor, Inc., 2010. All rights reserved.
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