Overview
The MPL115A2T1, produced by NXP USA Inc., is a miniature I2C digital barometer designed for low-cost applications. This absolute pressure sensor is housed in a compact 5 x 3 x 1.2 mm LGA package, making it ideal for space-constrained portable electronic devices. The sensor is optimized for low-power consumption, with a current draw of 5 μA in active mode and 1 μA in shutdown mode. It operates over a wide temperature range from –40 °C to +105 °C, ensuring reliability in demanding environmental conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Pressure Range | 50 kPa to 115 kPa |
| Accuracy | ±1 kPa |
| Supply Voltage | 2.375 V to 5.5 V |
| Interface | I2C (up to 400 kHz) |
| I2C Address | 7-bit address = 60h |
| Operating Temperature | –40 °C to +105 °C |
| Current Consumption | 5 μA (Active), 1 μA (Shutdown) |
| Package Type | Surface mount RoHS compliant LGA package |
Key Features
- Digitized pressure and temperature information with programmed calibration coefficients for host micro use.
- Factory calibrated.
- Integrated ADC for converting pressure and temperature sensor readings to digitized outputs via I2C port.
- Monotonic pressure and temperature data outputs.
- Low power consumption suitable for battery-powered devices.
- Compact and surface mount RoHS compliant package.
Applications
- Barometry (portable and desktop).
- Altimeters.
- Weather stations.
- Hard-disk drives (HDD).
- Industrial equipment.
- Health monitoring.
- Air control systems.
Q & A
- What is the operating pressure range of the MPL115A2T1?
The MPL115A2T1 operates within a pressure range of 50 kPa to 115 kPa.
- What is the accuracy of the MPL115A2T1 pressure sensor?
The accuracy of the MPL115A2T1 is ±1 kPa.
- What is the supply voltage range for the MPL115A2T1?
The supply voltage range is from 2.375 V to 5.5 V.
- What type of interface does the MPL115A2T1 use?
The MPL115A2T1 uses an I2C interface that operates up to 400 kHz.
- What is the I2C address of the MPL115A2T1?
The 7-bit I2C address is 60h.
- What is the operating temperature range of the MPL115A2T1?
The operating temperature range is from –40 °C to +105 °C.
- How much current does the MPL115A2T1 consume in active and shutdown modes?
The current consumption is 5 μA in active mode and 1 μA in shutdown mode.
- What type of package does the MPL115A2T1 come in?
The MPL115A2T1 comes in a surface mount RoHS compliant LGA package.
- What are some common applications of the MPL115A2T1?
Common applications include barometry, altimeters, weather stations, hard-disk drives, industrial equipment, health monitoring, and air control systems.
- How does the MPL115A2T1 communicate with a host microcontroller?
The MPL115A2T1 communicates via an I2C interface, using specific commands to read coefficients, execute pressure and temperature conversions, and read pressure and temperature data.
