Murata (MSCA3400-D01) Industrial-grade High-performance 3-axis Digital MEMS Accelerometer Sensor

1. Overview

Murata industrial-grade high-performance 3-axis digital MEMS accelerometer. It adopts Murata’s proprietary capacitive 3D-MEMS technology paired with a dedicated ASIC signal processing chip. The sensor features excellent long-term bias stability, ultra-low noise and robust vibration resistance over wide temperature range. It targets high-precision industrial tilt measurement, inertial measurement and structural monitoring applications. Supplied in a 12-pin SMD surface-mount package with SPI digital output and built-in hardware self-diagnosis function.Murata Manufacturing Co., Ltd.

2. Core Electrical / Mechanical Parameters

1. Full Scale & Filter (Two Selectable Modes)

• Mode 1: ±1.2g, 10Hz low-pass filter (optimal for high-precision static tilt measurement)

• Mode 2: ±2.4g, 80Hz low-pass filter (optimal for dynamic vibration measurement)Resolution: 15000 LSB/g, enabling outstanding capability to detect tiny acceleration changesOutput Data Rate (ODR): up to 2000Hz

1. Noise & Stability (Key Advantages)Noise density: 20 µg/√Hz (extremely low for the industry, enables precise capture of minor deformation and tilt)End-of-lifetime bias drift: X/Y ≤0.5mg, Z ≤2mg (hardly requires periodic recalibration after factory calibration)Temperature drift (-40℃ ~ +85℃): X/Y ≤2mg, Z ≤3mgLinearity error (under ±1.2g full scale): ≤1mg

2. Electrical SpecificationsSupply voltage: 3.0V ~ 3.6VCommunication interface: SafeSPI 2.0 digital interfaceStart-up time: 3ms; valid stable data output: 15msIntegrated comprehensive self-diagnostic circuit to check MEMS, ASIC and short-circuit faults

3. Package & Environmental RatingsDimensions: 8.6 × 7.6 × 3.3 mmPackage: 12-pin pre-molded DFL surface-mount, compatible with standard SMT reflow solderingOperating temperature: -40℃ ~ +85℃ (industrial wide temperature range)Compliance: RoHS, ELV (End-of-Life Vehicle Directive), lead-free

3. Applications

1. Structural Health Monitoring (SHM, flagship application)Deformation and vibration monitoring for bridges, wind turbine towers, buildings, dams and tower cranes. Deployed outdoors for long-term operation, requiring superior zero-point stability over years without frequent on-site calibration.

2. Tilt / Leveling SystemsSurveying levels, total stations, laser land levelers, aerial work platforms, precision vehicle-mounted leveling equipment; continuous high-precision acquisition of subtle tilt angles.

3. Inertial Measurement Unit (IMU)Industrial inertial navigation, robot attitude sensing, UAV stabilization platforms, AGV positioning assistance; combined with gyroscopes to form 6-axis inertial measurement units.

4. Industrial Equipment ControlVibration monitoring for CNC machine tools, attitude feedback for construction machinery, load & attitude monitoring of heavy-duty equipment, displacement detection on automated production lines.

5. Positioning & NavigationAuxiliary high-precision outdoor positioning, attitude monitoring of rail equipment, inertial-aided positioning for mobile survey carriers.

6. Construction / Geotechnical Engineering ToolsLevels, inclinometers, geological survey tilt sensors, slope monitoring sensors for foundation pits.

4. Summary of Key Product Advantages

Extremely low long-term zero drift. One-time factory calibration lasts for the full service life of the end device, greatly reducing after-sales maintenance.Ultra-low noise for weak static acceleration and micro tilt measurement.Wide temperature tolerance and high vibration resistance, suited for harsh industrial environments such as construction sites and wind farms.Two full-scale & filter modes, switchable via software for static or dynamic scenarios.Hardware self-diagnosis supports on-line equipment fault detection.