Overview
The KXTJ3-1057-EVB0A1 is a tri-axis digital accelerometer produced by Kionix Inc., a Japanese company. This accelerometer is part of the KXTJ3-1057 series and is designed for various applications requiring precise acceleration measurements. The device features a small footprint, making it suitable for compact designs, and it operates using the I²C digital communication protocol. The KXTJ3-1057 accelerometer is known for its high resolution, user-configurable g-ranges, and stable performance over a wide temperature range.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Axis | 3 (X, Y, Z) | - |
| G Range | ±2g, ±4g, ±8g, ±16g | - |
| Sensitivity (counts/g) | 1024 (±2g), 512 (±4g), 256 (±8g), 128 (±16g) | - |
| Resolution | 8-bit, 12-bit, 14-bit | - |
| Package Size | 2 x 2 x 0.9 mm | mm |
| Pins | 12-pin | - |
| Package Type | LGA | - |
| Interface Output | Digital (I²C) | - |
| Supply Voltage | 1.71 V - 3.6 V | V |
| Operating Temperature | -40°C to +85°C | °C |
| Output Data Rates | 0.781Hz to 1600Hz | Hz |
| Wake-Up Threshold | 3.9 mg | mg |
Key Features
- Small Footprint: The accelerometer is packaged in a 2 x 2 x 0.9 mm LGA package, making it ideal for compact designs.
- User-Configurable G-Ranges: The device supports g-ranges of ±2g, ±4g, ±8g, and ±16g, which can be configured via the I²C interface.
- High Resolution: Available in 8-bit, 12-bit, and 14-bit resolution modes, with the 14-bit mode available for the ±8g and ±16g ranges.
- Low Power Consumption: The device consumes 0.9 µA in standby, 10 µA in Low Power mode, and 155 µA in High Resolution mode.
- Wide Supply Voltage Range: Operates from 1.71 V to 3.6 V with internal voltage regulators to maintain stable operating characteristics.
- High Resolution Wake-Up Function: Features a Wake-Up threshold configurable down to 3.9 mg.
- I²C Digital Communication: Supports I²C communication up to 3.4 MHz.
- Embedded Low Pass Filter: Includes an embedded low pass filter for noise reduction.
- Self-Test Function: Allows for self-testing to ensure the device is functioning correctly.
- High Shock Survivability: Designed to withstand high shock forces.
- RoHS / REACH Compliant: Meets environmental regulations.
Applications
- Inertial Navigation Systems: Used in various navigation systems to measure acceleration and orientation.
- Automotive Systems: Applied in vehicle safety and ride comfort monitoring, rollover protection, airbag deployment, and body center gravity balance control.
- Consumer Electronics: Found in gaming equipment, smart home devices, and other consumer electronics requiring motion sensing.
- Medical Applications: Used to measure patient motion, footstep count, activity level, and to detect motion caused by seizures or faints.
- IoT Equipment: Utilized in IoT devices to record motion, detect vibration, tilt, and angle in smart cars and machinery.
- Physical Sports Monitoring: Employed in devices that monitor physical activity and sports performance.
Q & A
- What is the KXTJ3-1057 accelerometer used for?
The KXTJ3-1057 accelerometer is used to measure acceleration in three axes (X, Y, Z) and is applied in various fields such as automotive, consumer electronics, medical devices, and IoT equipment.
- What are the g-ranges available for the KXTJ3-1057?
The device supports g-ranges of ±2g, ±4g, ±8g, and ±16g, which can be configured via the I²C interface.
- What is the resolution of the KXTJ3-1057 accelerometer?
The accelerometer is available in 8-bit, 12-bit, and 14-bit resolution modes.
- What is the operating temperature range of the KXTJ3-1057?
The device operates over a temperature range of -40°C to +85°C.
- What communication protocol does the KXTJ3-1057 use?
The KXTJ3-1057 uses the I²C digital communication protocol.
- What is the supply voltage range for the KXTJ3-1057?
The device operates from a supply voltage of 1.71 V to 3.6 V.
- Does the KXTJ3-1057 have a Wake-Up function?
Yes, the KXTJ3-1057 features a high resolution Wake-Up function with a threshold configurable down to 3.9 mg.
- Is the KXTJ3-1057 RoHS / REACH compliant?
Yes, the KXTJ3-1057 is RoHS / REACH compliant.
- What is the package size of the KXTJ3-1057?
The device is packaged in a 2 x 2 x 0.9 mm LGA package.
- Does the KXTJ3-1057 have a self-test function?
Yes, the KXTJ3-1057 includes a self-test function to ensure the device is functioning correctly.
