Overview
The MS5611-01BA03 is a high-resolution barometric pressure sensor produced by TE Connectivity Measurement Specialties, leveraging technology from MEAS Switzerland. This sensor is designed for applications requiring precise altitude and pressure measurements, such as altimeters, variometers, and mobile barometer systems. It features a piezo-resistive sensor and a sensor interface IC, which convert the uncompensated analogue output voltage into 24-bit digital values for both pressure and temperature. Each module is individually factory calibrated at two temperatures and two pressures, ensuring high accuracy and stability.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | -0.3 | 3.0 | 4.0 | V |
| Operating Pressure Range | 10 | - | 1200 | mbar |
| Temperature Range | -40 | - | +85 | °C |
| Resolution (Pressure) | 0.012 | - | - | mbar |
| Resolution (Temperature) | <0.01 | - | - | °C |
| Accuracy (Pressure at 25°C, 750 mbar) | -1.5 | - | +1.5 | mbar |
| Accuracy (Temperature at 25°C) | -0.8 | - | +0.8 | °C |
| Response Time | 0.5 | - | 8.22 | ms |
| Interface | I2C, SPI up to 20 MHz | - | - | - |
| Package Size | - | 5.0 x 3.0 x 1.0 | - | mm³ |
Key Features
- High resolution module with an altitude resolution of 10 cm
- Fast conversion time down to 1 ms
- Low power consumption: 1 µA (standby < 0.15 µA)
- Integrated digital pressure sensor with 24-bit ΔΣ ADC
- No external components required (internal oscillator)
- Excellent long-term stability
- Factory calibrated with 6 coefficients stored in 128-bit PROM
- Dual serial interface: I2C and SPI up to 20 MHz
Applications
- Mobile altimeter/barometer systems
- Bike computers
- Variometers
- Height sensing for medical alarms
- Indoor navigation
Q & A
- What is the operating pressure range of the MS5611-01BA03? The operating pressure range is from 10 to 1200 mbar.
- What are the supported serial interfaces? The sensor supports both I2C and SPI interfaces up to 20 MHz.
- What is the power consumption of the MS5611-01BA03? The power consumption is 1 µA, with standby power less than 0.15 µA.
- What is the resolution of the pressure measurement? The pressure resolution can be as low as 0.012 mbar.
- What is the temperature range for the MS5611-01BA03? The temperature range is from -40 to +85 °C.
- Is the sensor factory calibrated? Yes, each module is individually factory calibrated at two temperatures and two pressures.
- What is the package size of the MS5611-01BA03? The package size is 5.0 x 3.0 x 1.0 mm³.
- What are the typical applications of the MS5611-01BA03? Typical applications include mobile altimeter/barometer systems, bike computers, variometers, height sensing for medical alarms, and indoor navigation.
- Does the sensor require external components? No, the sensor does not require external components as it has an internal oscillator.
- What is the response time of the MS5611-01BA03? The response time can be as low as 0.5 ms.
