LSM9DS1TR - 3D Accelerometer, Gyroscope, Magnetometer | STMicroelectronics
MPN: LSM9DS1TR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.16 | $4,160.00 |
Drop-in alternatives for LSM9DS1TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LSM9DS1
✅ Drop-In📋 Reference alternative (not in catalog)
LSM9DS1TR Maximum Ratings & Electrical Characteristics
| Supply Voltage | 1.9 V to 3.6 V |
| Accelerometer Full-Scale Range | ±2g/±4g/±8g/±16g |
| Gyroscope Full-Scale Range | ±245/±500/±2000 dps |
| Magnetometer Full-Scale Range | ±4/±8/±12/±16 gauss |
| Accelerometer Output Data Rate | Up to 952 Hz |
| Gyroscope Output Data Rate | Up to 952 Hz |
| Magnetometer Output Data Rate | Up to 80 Hz |
| Resolution | 16-bit |
| Interface | I2C / SPI |
| Package | LGA-28 (4x4x1 mm) |
| Operating Temperature | -40C to +85C |
| FIFO | Yes (embedded) |
| Interrupt Generators | 2 programmable |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
LSM9DS1TR Pin Configuration
| Pin 1 | VDD — Power supply (1.9V-3.6V) |
| Pin 2 | VDDIO — I/O supply voltage |
| Pin 3 | GND — Ground |
| Pin 4 | SCL/SPC — I2C clock / SPI clock |
| Pin 5 | SDA/SDI — I2C data / SPI data input |
| Pin 6 | SDO/SA0 — SPI data output / I2C address select |
| Pin 7 | CS — Chip select (low for SPI, high for I2C) |
| Pin 8 | INT1 — Interrupt 1 output |
| Pin 9 | INT2 — Interrupt 2 output |
| Pin 10 | RES — Reserved (do not connect) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LSM9DS1TR is suitable for 6 applications: Smartphone Motion Sensing, Wearable Fitness Tracker, Drone Stabilization, Robotics Navigation, AR/VR Headset Tracking, Industrial Vibration Monitoring.
Smartphone Motion Sensing
The LSM9DS1TR provides 9-axis motion sensing for screen rotation, gesture recognition, and step counting. Its low power consumption and small footprint make it ideal for smartphones. The accelerometer detects device orientation, the gyroscope measures angular velocity for smooth UI transitions, and the magnetometer provides heading information for compass applications. The embedded FIFO reduces host processor load, enabling always-on motion detection with minimal battery drain.
Recommended
Wearable Fitness Tracker
The LSM9DS1TR is used in fitness trackers to monitor steps, calories, and sleep quality. Its low power consumption (typically 0.9 mA in normal mode) extends battery life. The accelerometer's high resolution (16-bit) and wide full-scale range (±16g) enable accurate activity detection even during vigorous exercise. The gyroscope provides orientation data for gesture recognition, and the magnetometer helps in navigation. The device's small LGA-28 package fits into compact wearable designs.
Recommended
Drone Stabilization
The LSM9DS1TR provides high-rate gyroscope data (up to 952 Hz) for real-time flight control. Its low noise and high resolution ensure stable hover and precise maneuvers. The accelerometer and magnetometer are used for attitude estimation and heading reference. The device's wide supply voltage range (1.9V-3.6V) allows direct connection to a 3.3V regulator. The embedded FIFO and interrupt generators enable efficient data handling in time-critical control loops.
Recommended
Robotics Navigation
The LSM9DS1TR enables precise motion tracking for robots, including orientation, tilt, and heading. Its 9-axis fusion provides robust attitude estimation even in the presence of magnetic interference. The device's SPI interface allows high-speed data transfer (up to 10 MHz) for real-time control. The wide operating temperature range (-40C to +85C) makes it suitable for industrial robots. The interrupt generators can trigger on motion events, reducing processor polling.
Recommended
AR/VR Headset Tracking
The LSM9DS1TR provides low-latency, high-frequency motion data for head tracking in AR/VR headsets. Its gyroscope ODR up to 952 Hz and 16-bit resolution ensure smooth, responsive tracking. The accelerometer and magnetometer complement the gyroscope for drift-free orientation. The device's small size and low power consumption are critical for head-mounted designs. The embedded FIFO reduces data transfer overhead, enabling high-speed sensor fusion.
Recommended
Industrial Vibration Monitoring
The LSM9DS1TR is used to monitor vibration in industrial machinery, detecting anomalies and predicting failures. Its accelerometer's wide full-scale range (±16g) and high ODR (up to 952 Hz) capture high-frequency vibrations. The device's industrial temperature range (-40C to +85C) ensures reliable operation in harsh environments. The SPI interface allows integration with industrial PLCs. The interrupt generators can trigger alarms on excessive vibration.
Recommended
Recommended Products Summary
Engineering reference data for LSM9DS1TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LSM9DS1 | LSM9DS0 | MPU-9250 |
|---|---|---|---|---|
| Package | LGA-28 (4x4x1 mm) | LGA-28 (4x4x1 mm) - same | LGA-28 (5x5x1 mm) - different | QFN-24 (3x3x1 mm) - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | TDK InvenSense |
| Supply Voltage | 1.9V to 3.6V | 1.9V to 3.6V | 2.16V to 3.6V | 2.4V to 3.6V |
| Accelerometer Full-Scale | ±2/±4/±8/±16g | ±2/±4/±8/±16g | ±2/±4/±6/±8/±16g | ±2/±4/±8/±16g |
| Gyroscope Full-Scale | ±245/±500/±2000 dps | ±245/±500/±2000 dps | ±250/±500/±2000 dps | ±250/±500/±1000/±2000 dps |
| Magnetometer Full-Scale | ±4/±8/±12/±16 gauss | ±4/±8/±12/±16 gauss | ±2/±4/±8/±12 gauss | ±4800 uT (±48 gauss) |
| Interface | I2C / SPI | I2C / SPI | I2C / SPI | I2C / SPI |
| Output Data Rate (Accel/Gyro) | Up to 952 Hz | Up to 952 Hz | Up to 400 Hz | Up to 4000 Hz (gyro) |
Key Differentiators
- Smaller package size (vs LSM9DS0)
- Higher accelerometer ODR (vs LSM9DS0)
- Lower power consumption (vs MPU-9250)
Design Notes
Decouple the VDD and VDDIO pins with a 100nF ceramic capacitor placed as close to the pins as possible. Additionally, add a 10uF bulk capacitor on the VDD line to handle transient currents. The VDDIO pin should be connected to the same supply as the host microcontroller's I/O voltage to ensure proper logic levels.
Place the LSM9DS1TR away from high-frequency noise sources such as switching regulators and communication modules. Use a solid ground plane underneath the sensor to minimize noise coupling. Follow the layout guidelines in the datasheet, including proper via placement for thermal relief and signal integrity.
Ensure the CS pin is correctly tied to VDDIO for I2C mode or GND for SPI mode. Incorrect configuration can lead to communication failures. Also, avoid exceeding the absolute maximum ratings (4.8V on VDD) to prevent permanent damage. When using the magnetometer, keep ferromagnetic materials away from the sensor to avoid magnetic interference.
Compliance Information
RoHS and REACH compliant per STMicroelectronics. Not AEC-Q100 qualified.