EmbeddedRelated.com
    Parts    MS561101BA03-50
MS5611-01BA03

MS5611-01BA03

MPN: MS561101BA03-50
TE Connectivity Measurement Specialties
Pressure Sensor 0.15PSI ~ 17.4PSI (1kPa ~ 120kPa) Absolute 24 b 8-SMD
Active14,995 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The MS5611-01BA03 is a high-resolution barometric pressure sensor designed for altitude measurement with an industry-leading resolution of 10 cm. It integrates a high-linearity pressure sensor with an ultra-low power 24-bit Delta-Sigma ADC and internal factory-calibrated coefficients. The device supports both I2C and SPI interfaces, making it highly adaptable for mobile altimeters and variometers.

Why Choose This Part

The sensor offers an exceptional combination of 24-bit resolution and fast conversion times down to 1 ms. It eliminates the need for external components due to its internal oscillator and features a low standby current of 0.15 uA for battery-efficient operation. Long-term stability and a wide supply voltage range of 1.8V to 3.6V make it a robust choice for portable electronics.

Applications

Mobile Altimeters
High-resolution height tracking for handheld devices and outdoor sports watches.
Unmanned Aerial Vehicles (UAVs)
Precise altitude hold and vertical speed indication (variometer) for drones.
Indoor Navigation
Floor-level detection by sensing minute pressure changes within buildings.
Medical Alarms
Height sensing for fall detection and medical emergency monitoring systems.

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
Maximum Pressure 87.02PSI (600kPa)
Voltage - Supply 1.8V ~ 3.6V
Termination Style SMD (SMT) Tab
Operating Pressure 0.15PSI ~ 17.4PSI (1kPa ~ 120kPa)
Operating Temperature -40degC ~ 85degC

Getting Started

Interface the sensor via I2C or SPI by pulling the PS pin high or low, respectively. Use the provided factory calibration coefficients stored in the PROM to perform temperature compensation in your firmware. Start by sending a Reset command, followed by reading the 128-bit PROM for calibration values before initiating pressure and temperature conversions.

Also Consider

MS5607-02BA TE Connectivity - A software-compatible alternative optimized for slightly different cost and performance trade-offs within the same family.