Overview
The MPL3115A2R1, produced by NXP USA Inc., is a compact, piezoresistive, absolute pressure sensor designed with an I2C digital interface. This sensor is engineered to provide highly precise pressure and altitude data, making it suitable for a variety of applications including mobile devices, medical equipment, and security systems. The MPL3115A2R1 features an on-chip temperature sensor for temperature compensation, ensuring accurate readings across a wide range of environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Pressure Range | 20 kPa to 110 kPa | kPa |
| Calibrated Pressure Range | 50 kPa to 110 kPa | kPa |
| Temperature Range | −40 °C to 85 °C | °C |
| Pressure Measurement Resolution | 20-bit (Pascals) | - |
| Altitude Measurement Resolution | 20-bit (meters) | - |
| Temperature Measurement Resolution | 12-bit (°C) | - |
| Supply Voltage | 1.95 V to 3.6 V | V |
| Digital Interface Supply Voltage | 1.62 V to 3.6 V | V |
| Active Supply Current | 40 μA per measurement-second | μA |
| Package Type | 8-pin LGA | - |
Key Features
- Fully compensated internally for pressure and temperature.
- Precision ADC resulting in 0.1 meter effective resolution for altitude measurements.
- Programmable interrupts and autonomous data acquisition modes.
- Embedded 32-sample FIFO for data logging up to 12 days.
- Data acquisition rate from one second to nine hours.
- I2C digital output interface.
- Internal temperature sensor for temperature compensation.
- Operating temperature range from −40 °C to +85 °C.
Applications
The MPL3115A2R1 is versatile and can be used in various applications, including:
- Mobile devices for altitude and pressure sensing.
- Medical equipment requiring precise pressure measurements.
- Security systems that need environmental monitoring.
- Weather stations and meteorological devices.
- Automotive systems for altitude and pressure sensing.
Q & A
- What is the operating pressure range of the MPL3115A2R1?
The operating pressure range is from 20 kPa to 110 kPa. - What is the calibrated temperature range for the MPL3115A2R1?
The calibrated temperature range is from −40 °C to 85 °C. - What is the resolution of the pressure measurement?
The pressure measurement resolution is 20-bit. - Does the MPL3115A2R1 support programmable interrupts?
Yes, the MPL3115A2R1 supports programmable interrupts. - What is the typical active supply current per measurement-second?
The typical active supply current is 40 μA per measurement-second. - What is the package type of the MPL3115A2R1?
The package type is an 8-pin LGA. - Can the MPL3115A2R1 log data autonomously?
Yes, it can log data autonomously with an embedded 32-sample FIFO. - What is the data acquisition rate range for the MPL3115A2R1?
The data acquisition rate ranges from one second to nine hours. - Is the MPL3115A2R1 sensitive to light and mechanical shock?
Yes, the device is sensitive to light exposure and mechanical shock. - What is the supply voltage range for the MPL3115A2R1?
The supply voltage range is from 1.95 V to 3.6 V.
