High Performance Inertial Measurement Unit LINS688B
High Performance Inertial Measurement Unit LINS688B
Main Features
– Triaxial, digital gyroscope, ±450°/sec dynamic range
– Triaxial, digital accelerometer, ±20g
– Triaxial, digital magnetometer, ±8 gauss
– Digital pressure sensor, 300 mbar to 1100 mbar
– High bandwidth 400Hz
– Factory-calibrated sensitivity, bias, and axial alignment
– Calibration temperature range: −40°C to +85°C
– SPI-compatible serial interface
– Embedded temperature sensor
– Single-supply operation: 3.0 V to 3.6 V
– 2000 g shock survivability
– Small in size and light in weight
– Fully compatible with ADIS16488A
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Product Description
Inertial Measurement Unit LINS688B is an inertial measurement device with small volume and high overload resistance. Gyro bias in-run stability is 1.5°/ h (Allan), and accelerometer bias in-run stability is 20ug (Allan). It can be used for precise navigation, control and dynamic measurement of carrier. This series of products use high-precision MEMS inertial devices, which have high reliability and high firmness, and can still accurately measure the angular velocity and acceleration information of the moving carrier in harsh environments.
LINS688B has a built-in three-axis gyro and three-axis accelerometer for measuring the three-axis angular rate and three-axis acceleration of the carrier. The gyro and accelerometer data with error compensation (including temperature compensation, installation misalignment angle compensation, nonlinear compensation, etc.) are output through the serial port according to the agreed communication protocol, and the three-axis magnetic sensor and air pressure sensor are built in.
Main Features of Inertial Measurement Unit
– Triaxial, digital gyroscope, ±450°/sec dynamic range
– Accelerometer, ±20g
– Digital magnetometer, ±8 gauss
– Digital pressure sensor, 300 mbar to 1100 mbar
– High bandwidth 400Hz
– Factory-calibrated sensitivity, bias, and axial alignment
– Calibration temperature range: −40°C to +85°C
– SPI-compatible serial interface
– Embedded temperature sensor
– Single-supply operation: 3.0 V to 3.6 V
– 2000 g shock survivability
– Small in size and light in weight
– Fully compatible with ADIS16488A
Applications of Inertial Measurement Unit
- Autonomous Vehicles
IMUs provide vehicle orientation, stability control, and GPS-denied navigation for self-driving cars and robotic vehicles.
- Drones & UAVs
Essential for flight stabilization, hover precision, and autonomous pathing in consumer and military drones.
- Aerospace Navigation
Powers aircraft autopilots, spacecraft attitude control, and missile guidance with real-time acceleration and angular data.
- Consumer Electronics
Enables screen rotation, gesture controls, fitness tracking, and gaming in smartphones, wearables, and controllers.
- VR/AR & Motion Capture
Tracks head movements and body poses at high speeds for immersive VR experiences and sports analytics.
- Robotics
Maintains balance, positioning accuracy, and dynamic navigation in industrial, medical, and service robots.
- Medical Devices
Monitors patient gait, rehabilitation progress, and wearable diagnostics for movement disorders.
- Industrial Monitoring
Detects vibrations, shocks, and machinery orientation for predictive maintenance and process optimization.
Specifications of Inertial Measurement Unit
| Parameter | Test Condition | Min | Nominal | Max | Unit | ||
| Gyroscope | Range | -450 | +450 | deg/s | |||
| Bias instability | Allan Variance | 1.0 | 1.5 | 2.0 | deg/h | ||
| Angle Random walk | 0.065 | deg/√h | |||||
| Resolution | 0.007 | deg/s | |||||
| Nonlinearity | FS = 450 °/s | 0.1 | %FS | ||||
| Bandwith | 400 | Hz | |||||
| Accelerometer | Range | -20 | +20 | g | |||
| Bias instability | 20 | μg | |||||
| Velocity Random walk | 0.02 | m/s/√h | |||||
| Resolution | 0.02 | mg | |||||
| Nonlinearity | 0.1 | %FS | |||||
| Bandwith | 480 | Hz | |||||
| Magnetometer | Range | -8 | +8 | gauss | |||
| Resolution | 0.2 | mg | |||||
| Noise density | 50 | μg | |||||
| Barometer | Range | 300 | 1100 | mbar | |||
| Tolerance | 4.5 | mbar | |||||
| COM interface | SPI | Baud rate | <10MHz | MHz | |||
| Electrical characteristics | Voltage | 3.0 | 3.3 | 3.6 | V | ||
| Power Consumption | 0.5 | W | |||||
| Ripple | P-P | 100 | mV | ||||
| Structural characteristics | Dimension | 44.0 × 47.0 ×14.0 | mm | ||||
| Weight | 50 | g | |||||
|
Use environment | Working Temperature | -40 | 75 | ||||
| Storage Temperature | -45 | 85 | |||||
| Vibration | 10〜2000Hz, 6g | ||||||
| Shock | 30g, 11ms | ||||||
| Overload | (Half-sine 0.5msec) | 1000g | |||||
| Criminality | MTBF | 20000 | h | ||||
| Continuous working time | 120 | h | |||||

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Strict Production Process
Engineers develop optimized electronic circuits and structural designs based on real application needs.
High-quality components and materials are carefully selected from trusted suppliers to ensure long-term reliability.
Automated SMT and precision soldering technologies are used to build stable and high-performance circuit boards.
Sensor elements or connector terminals are assembled with the PCB and housing to ensure accurate operation and strong mechanical stability.
Each product undergoes strict calibration and functional testing to guarantee accuracy and stable performance.
Every unit is carefully inspected, labeled, and securely packaged to ensure it arrives safely and performs reliably for your applications.
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