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MS5803-02BA

MS5803-02BA

TE Connectivity (Measurement Specialties)
Lower-range variant in the same family offering higher sensitivity for low-pressure absolute measurements when 14 bar is not required.
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Overview

The MS5803-02BA is a compact, high-resolution digital pressure sensor optimized for low-pressure absolute measurements. It integrates a pressure sensor and a 24-bit ADC, providing precise digital output via I2C or SPI interfaces. Designed for robust performance, it offers excellent long-term stability and can be hermetically sealed for use in demanding environments.

Why Choose This Part

This sensor integrates all necessary components, including an internal oscillator, eliminating the need for external parts and simplifying board design. Its 24-bit ADC resolution allows for highly accurate pressure readings. With low power consumption (20uA standby, 1.4mA during conversion) and a wide supply voltage range of 1.8V to 3.6V, it is well-suited for battery-powered applications.

Applications

Altimeters and Barometers
Its high resolution and accuracy make it suitable for precise altitude and atmospheric pressure measurements in portable devices or weather stations.
Consumer Electronics
Integration into smart devices for environmental monitoring or subtle pressure detection, leveraging its compact size and low power consumption.
Industrial Control Systems
Monitoring low pressure within industrial processes, where accuracy and long-term stability are critical.
Water Depth Measurement
Suitable for shallow water depth sensing, given its hermetically sealable design and pressure range.
Medical Devices
For applications requiring precise air pressure monitoring within medical equipment, benefiting from its high resolution and small footprint.

Key Specifications

Output 24 b
Accuracy +/-0.022PSI (+/-0.15kPa)
Port Style No Port
Output Type I2C, SPI
Applications Board Mount
Mounting Type Surface Mount
Pressure Type Absolute
Package / Case 8-SMD Module
Maximum Pressure 145.04PSI (1000kPa)
Voltage - Supply 1.8V ~ 3.6V
Termination Style SMD (SMT) Tab
Operating Pressure 4.35PSI ~ 15.95PSI (30kPa ~ 110kPa)
Operating Temperature -40degC ~ 85degC

Getting Started

To get started, connect the MS5803-02BA to a microcontroller using either its I2C or SPI interface. Libraries are often available for common microcontroller platforms like Arduino or ESP32, which simplify reading the 24-bit pressure and temperature data. Refer to the manufacturer's integration guide for specific timing and command sequences.

Also Consider

MS5803-14BA TE Connectivity (Measurement Specialties) - This is a higher-pressure variant (up to 14 bar / 1400 kPa) in the same family, suitable if your application requires a wider measurement range than 2 bar.
MS5611-01BA03 TE Connectivity (Measurement Specialties) - A higher-resolution (24-bit) altimeter and pressure sensor for barometric applications, offering slightly better relative accuracy for altitude measurements.
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