SKU: SENS-1151
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ROHM Semiconductor KXTJ3-1057 LGA-12 3-Axis Accelerometer Sensor - ±2g/±4g/±8g/±16g, I2C Interface

₹46.00 (Inclusive of all taxes)
Out of Stock

The ROHM Semiconductor KXTJ3-1057 is a low-power, tri-axis digital accelerometer in a compact LGA-12 package, offering selectable ranges from ±2g to ±16g. It features I2C communication up to 3.4 MHz and is compatible with 1.71V to 3.6V logic systems, making it ideal for integration into mobile devices, automotive systems, and industrial IoT platforms.

Features

  • Tri-axis digital accelerometer with user-selectable full-scale ranges of ±2g, ±4g, ±8g, and ±16g.
  • Ultra-low power consumption with 0.9 µA standby current and a wide supply voltage range of 1.71V to 3.6V.
  • High-resolution 14-bit output and configurable output data rates from 0.781 Hz to 1600 Hz.
  • Robust LGA-12 package (2 x 2 x 0.9 mm) designed for high shock survivability and stable performance.
  • Integrated features include a built-in low-pass filter, a high-resolution wake-up function, and a self-test capability.

Out of stock

Description

The KXTJ3-1057 from ROHM Semiconductor Semiconductors is a MEMS-based capacitive accelerometer engineered for precision motion sensing in space-constrained applications. Its digital output is delivered via a high-speed I2C interface, supporting clock frequencies up to 3.4 MHz for rapid data acquisition. The sensor’s architecture ensures low noise and excellent temperature stability across its operating range.

Designed for durability, the device incorporates a robust mechanical structure capable of withstanding high shock events. The integrated low-pass filter helps reduce high-frequency noise, while the configurable data rates and resolution allow designers to optimize the trade-off between power consumption and measurement fidelity for specific use cases, from continuous monitoring to event-driven wake-up scenarios.

Key Features

  • Multi-Range Sensing: User-configurable sensitivity across four full-scale ranges (±2g, ±4g, ±8g, ±16g) for versatile application needs.
  • Ultra-Low Power Operation: Features a standby current of just 0.9 µA, enabling long battery life in portable and wireless sensor nodes.
  • High-Speed Digital Interface: I2C serial communication supports fast mode (400 kHz) and high-speed mode (up to 3.4 MHz) for efficient system integration.
  • Advanced Signal Conditioning: Includes an embedded programmable low-pass filter and selectable output data resolution (8, 12, or 14-bit).
  • Robust & Reliable Design: Engineered for high shock survivability and stable performance over a wide temperature range.
  • Integrated Self-Test: Built-in function allows for system validation and verification of accelerometer operation.
  • Compact Footprint: Miniature 2 x 2 x 0.9 mm LGA-12 package saves valuable PCB space.
  • Regulatory Compliance: Manufactured to be RoHS and REACH compliant, meeting global environmental standards.

Applications

  • Mobile device orientation detection, screen rotation, and tap-to-wake features.
  • Automotive telematics, crash detection, and anti-theft system motion sensing.
  • Industrial equipment health monitoring, vibration analysis, and shock event logging.
  • Wearable electronics for activity tracking, step counting, and gesture recognition.
  • IoT sensor nodes for smart home automation, asset tracking, and tilt sensing.

Technical Specifications

Manufacturer Part NumberKXTJ3-1057
Sensor Type3-Axis Digital Accelerometer (MEMS Capacitive)
Full-Scale RangeSelectable: ±2g, ±4g, ±8g, ±16g
Supply Voltage Range1.71 V to 3.6 V DC
Standby Current0.9 µA (typical)
Output Data RateUser-configurable: 0.781 Hz to 1600 Hz
Output Resolution8-bit, 12-bit, or 14-bit (selectable)
Digital InterfaceI2C (up to 3.4 MHz)
Package TypeLGA-12
Package Dimensions2.0 x 2.0 x 0.9 mm
Operating Temperature Range-40°C to +85°C (typical)
Special FeaturesLow-pass filter, Wake-up function, Self-test
CertificationsRoHS, REACH Compliant

Frequently Asked Questions

What is the operating voltage range for the KXTJ3-1057 accelerometer?

The KXTJ3-1057 operates from a wide supply voltage range of 1.71V to 3.6V DC. This makes it directly compatible with common low-voltage logic levels, including 1.8V, 2.5V, and 3.3V systems, without requiring a level shifter.

How do I communicate with this sensor and what is the maximum I2C speed?

Communication is via a standard I2C serial interface. The sensor supports I2C fast mode (400 kHz) and high-speed mode, with a maximum clock frequency of up to 3.4 MHz for rapid data transfer. The device has a programmable I2C address.

Can I adjust the sensitivity and output data rate of this accelerometer?

Yes, the sensor is highly configurable. You can select from four full-scale ranges (±2g, ±4g, ±8g, ±16g) for different sensitivity needs. The output data rate is also programmable, with options ranging from 0.781 Hz for ultra-low power to 1600 Hz for high-frequency sampling.

Does the sensor include any built-in features for signal conditioning or system validation?

Yes, it includes an embedded programmable low-pass filter to reduce high-frequency noise. For system validation, it features a built-in self-test function that electronically stimulates the sensor to verify its mechanical and electrical operation.

Package Includes

  • 1 x ROHM Semiconductor KXTJ3-1057 Accelerometer (LGA-12 package)

Additional Information

Weight 0.035 kg
Dimensions 12 × 9 × 2 cm