MPL115A2_10 Datasheet, PDF (1/8 Pages) Freescale Semiconductor, Inc – Miniature I2C Digital Barometer

Pressure
Freescale Semiconductor
MPL115A2
Rev 6, 03/2010
Miniature I²C Digital Barometer
The MPL115A2 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 μA during Active mode and 1 μA 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.
MPL115A2 employs a MEMS pressure sensor with a conditioning IC to provide
accurate pressure measurement from 50 to 115 kPa. An integrated ADC provides
digitized temperature and pressure sensor outputs via an I²C port. Calibration
Data is stored in internal ROM. Utilizing raw sensor output, the host
microcontroller executes a compensation algorithm to render Compensated
Absolute Pressure with 1 kPa accuracy.
The MPL115A2 pressure sensor’s small form factor, low power capability,
precision, and digital output optimize it for barometric measurement applications.
Features
MPL115A2
50 to 115 kPa
Application Examples
• Barometry (portable and desk-top)
• Altimeters
• Weather Stations
• Hard Disk-Drives (HDD)
• Industrial Equipment
• Health Monitoring
• Air Control Systems
• 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
• I²C Interface
• Monotonic Pressure and Temperature Data Outputs
• Surface Mount RoHS Compliant Package
Device Name
MPL115A2T1
Package Options
Tape & Reel
ORDERING INFORMATION
Case No.
# of Ports
None Single
Dual
2015
•
Pressure Type
Gauge Differential Absolute
•
Digital
Interface
I²C
LGA PACKAGE
MPL115A2
5.0 mm X 3.0 mm X 1.2 mm MAX
V_DD
1
CAP 2
GND 3
SHDN 4
8 SCL
7 SDA
6 NC
5 RST
PIN CONNECTIONS
Pin Description
PIN NAME
FUNCTION
1
VDD VDD Power Supply Connection.
2
CAP External Capacitor
3
GND Ground
4
SHDN Shutdown (Sleep): Connect to GND to disable the device.
5
RST Reset: Drive line low to disable I²C communications.
6
NC NC: No connection.
7
SDA⁽¹⁾ SDA: Serial data I/O line.
8
SCL⁽¹⁾ I²C Serial Clock Input.
1. Use 4.7k pull-up resistors for I²C communication.
© Freescale Semiconductor, Inc., 2010. All rights reserved.