MPL3115A2 Fact Sheet - Freescale Semiconductor

Xtrinsic MPL3115A2 Pressure Sensor
The Smart Choice for Precise
Pressure and Altitude Detection
Overview
Target Applications
Freescale’s Xtrinsic MPL3115A2 pressure sensor provides highly precise pressure and altitude
• High-accuracy altimeter function
data with variable sampling rate capability up to 128 Hz. It has very low power consumption,
smart features and requires zero data processing for mobile devices, medical and security
applications.
• High-accuracy barometer
function
•Smartphones
The Xtrinsic MPL3115A2 pressure sensor smart features include digital output, two interrupts
for auto-wake, minimum/maximum threshold detection and autonomous data acquisition.
• Tablets
Microcontroller (MCU) usage can be limited since the MPL3115A2 pressure sensor can
• GPS dead reckoning
process sensor data locally, reducing communications required with the host processor.
• Map assist/navigation
The Xtrinsic MPL3115A2 pressure sensor provides unique performance that allows new user
• Outdoor and indoor localization
services at a low system cost. The device has extremely high accuracy—30 cm resolution
• Personal electronics altimeter
(20-bit resolution measurement)—that provides a flexible output of either meters or pascals.
The MPL3115A2 pressure sensor is packed with embedded functions and flexible user
function
• Respiratory equipment
programmable options.
• Leisure/sports equipment
With extended battery life where the MPL3115A2 pressure sensor can run as low as 8.5 µA
at 1 Hz in low-power mode, it is ideal for mobile applications. The 32 sample FIFO can offload
•Appliances
communications with the host processor as well as regulate the auto-wake and sleep mode
• Weather stations
functions.
• Security devices
MPL3115A2 Pressure Sensor Block Diagram
MPL3115A2 Pressure Sensor
Reference
+
Regulator
Pressure
Sensor
Vdd
VddIO
CAP
SDA
Sense
Amp
MUX
ADC
Temp
Digital Signal
Processing and
Control
SCL
INT1
INT2
Clock
Oscillator
MEMS die
Analog
Digital
Trim
Logic
Key Features
• Altitude resolution: less than 1 foot/0.3m
• Pressure resolution: 1.5 Pa
• Compensated, direct reading (software is
not needed):
20-bit pressure measurement (pascals)
20-bit altitude measurement (meters)
12-bit temperature measurement
(°Celsius)
• Onboard intelligence:
Interprets meters
Programmable events
Two programmable interrupt pins for
auto-wake, minimum/maximum and
threshold detection
Ordering Information
Part Number
Operating
Supply (V)
Pressure
Range (kPa)
Altitude Range
(m)
MPL3115A2 /T1
1.95–3.6
20–110
-656.44 (below sea
level) to 12,966.31
Document Number
Title
Description
MPL3115A2
MPL3115A2 Data Sheet
Presents the specifications for this product
Development Tools
Kit Number
Description
KITSTBMPL3115A2
The KITSTBMPL3115A2 contains one PCB that is the MPL3115A2
pressure sensor daughter card. Customers can purchase the LFSTBUSB
communication board and the sensor interface board separately.
DEMOSTBMPL3115A2
The DEMOSTBMPL3115A2 is a complete kit containing three PCBs: the
MPL3115A2 pressure sensor daughter card, the sensor interface board
and the LFSTBUSB communication board for running Freescale’s Sensor
Toolbox PC software.
• Flexible sampling rate up to 128 Hz
•I2C digital output interface (operates up to
400 kHz)
• Low current consumption:
Standby mode: 2 μA
Low-power mode: 8.5 µA at 1 Hz
• I/O interface supply: 1.6 to 3.6 V
• Supply voltage: 1.95 to 3.6 V
• Low-profile 3 x 5 x 1.1 mm LGA package
Benefits
• Highly precise pressure and altitude data
• Flexible sampling rate
Freescale: A Leader in
Sensing Solutions
Expanding on its more than 30-year heritage
of sensor innovation, Freescale’s Xtrinsic
sensing solutions are designed with the
right combination of high-performance
sensing capability, processing capacity and
customizable software to help deliver smart,
differentiated sensing solutions. With Xtrinsic
sensors, our vision is to offer a diverse and
• Very low power consumption
differentiated product portfolio to meet
• Smart features with unique performance
the expanding needs of the automotive,
• Requires zero data processing
consumer and industrial segments. Xtrinsic
• High accuracy—30 cm resolution (20-bit
resolution measurement)
and intelligence designed to help our
• Flexibility with output in either meters
or pascals
3 x 5 x 1.1 mm LGA
Documentation
Autonomous data acquisition
Embedded 32 sample FIFO buffer
Package
solutions offer ideal blends of functionality
customers differentiate and win in highly
competitive markets.
• Easy integration and development
The DEMOSTBMPL3115A2
• Direct output of vertical heigh measurement
saving host conversion to pressure units
development kit
For more information visit freescale.com/pressure
Freescale, the Freescale logo and Xtrinsic are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. All other
product or service names are the property of their respective owners. © 2011, 2014 Freescale Semiconductor, Inc.
Document Number: MPL3115A2FS REV 1