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