Freescale Semiconductor
Data Sheet: Advance Information
An Energy Efficient Solution by Freescale
Document Number: MPL3115A2
Rev 2.2, 07/2012
I2C Precision Altimeter
MPL3115A2
The MPL3115A2 employs a MEMS pressure sensor with an I2C interface to
provide accurate Pressure/Altitude and Temperature data. The sensor outputs
are digitized by a high resolution 24-bit ADC. Internal processing removes
compensation tasks from the host MCU system. Multiple user-programmable,
power saving, interrupt and autonomous data acquisition modes are available,
including programmed acquisition cycle timing, and poll-only modes. Typical
active supply current is 40 A per measurement-second for a stable 30 cm
output resolution. Pressure output can be resolved with output in fractions of a
Pascal, and Altitude can be resolved in fractions of a meter.
50 to 110 kPa
The MPL3115A2 is offered in a 5 mm by 3 mm by 1.1 mm LGA package and
specified for operation from -40C to 85C. Package is surface mount with a
stainless steel lid and is RoHS compliant.
Features
LGA PACKAGE
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1.95V to 3.6V Supply Voltage, internally regulated by LDO
1.6V to 3.6V Digital Interface Supply Voltage
Fully Compensated internally
5.0 mm by 3.0 mm by 1.1 mm
Direct Reading, Compensated
Top View
– Pressure: 20-bit measurement (Pascals)
– Altitude: 20-bit measurement (meters)
1
2
3
4
8
7
6
5
SCL
SDA
INT1
INT2
V
DD
– Temperature: 12-bit measurement (degrees Celsius)
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Programmable Events
Autonomous Data Acquisition
CAP
GND
Resolution down to 1 ft. / 30 cm
32 Sample FIFO
Ability to log data up to 12 days using the FIFO
1 second to 9 hour data acquisition rate
I2C digital output interface (operates up to 400 kHz)
V
DDIO
Pin Connections
Application Examples
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High Accuracy Altimetry
Smartphones/Tablets
Personal Electronics Altimetry
GPS Dead Reckoning
GPS Enhancement for Emergency Services
Map Assist, Navigation
Weather Station Equipment
ORDERING INFORMATION
# of Ports
Pressure Type
Digital
Interface
Device Name
Package Options
Case No.
None
Single
Dual
Gauge
Differential Absolute
MPL3115A2
Tray
2153
2153
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MPL3115A2R1
Tape & Reel (1000)
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This document contains information on a new product. Specifications and information herein
are subject to change without notice.
© 2011-2012 Freescale Semiconductor, Inc. All rights reserved.