ROHM Semiconductor KX022-1020 LGA-12 3-Axis Accelerometer Sensor

Name: ROHM Semiconductor KX022-1020 LGA-12 3-Axis Accelerometer Sensor
Brand: ROHM Semiconductor
SKU: SENS-1152
Price: 62.00 INR
Availability: OutOfStock

₹62.00 (Inclusive of all taxes)

Out of Stock

The ROHM Semiconductor KX022-1020 is a compact, low-power 3-axis digital accelerometer in an LGA-12 package, offering selectable g-ranges (±2g, ±4g, ±8g) and configurable data rates. It features integrated motion detection algorithms and supports both I2C and SPI digital interfaces, making it ideal for integration into portable electronics, IoT devices, and industrial monitoring systems.

Features

Tri-axis digital accelerometer with selectable full-scale ranges (±2g, ±4g, ±8g).
Supports high-speed I2C (up to 3.4 MHz) and SPI (up to 10 MHz) digital communication.
Integrated 256-byte FIFO buffer and motion detection algorithms (tap, double-tap, orientation).
Low-power and high-resolution operating modes for optimized performance.
Factory-calibrated for offset and sensitivity, ensuring stable output.

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Description

The KX022-1020 is a MEMS-based accelerometer designed for high-performance motion sensing. Its robust architecture provides high shock survivability and excellent temperature stability, making it suitable for demanding applications. The sensor includes a digital high-pass filter for noise reduction and an internal voltage regulator for consistent operation across a range of supply voltages.

With user-configurable data rates and a programmable wake-up function, the KX022 excels in power-sensitive designs. Its compact LGA-12 footprint and factory calibration simplify PCB integration and reduce development time, providing a reliable sensing solution for motion-activated systems and tilt-compensation modules.

Key Features

High-performance MEMS accelerometer with low-noise signal chain.
Selectable g-ranges (±2g, ±4g, ±8g) and output data rates for application flexibility.
Integrated 256-byte FIFO buffer for efficient host processor data handling.
Advanced embedded functions: free-fall, directional tap/double-tap, and orientation detection.
Internal voltage regulator ensures stable 1.8V core operation from a 1.71V to 3.6V supply.
Low-power consumption modes extend battery life in portable devices.
Built-in self-test capability for system diagnostics and validation.
RoHS-compliant LGA-12 (2x2 mm) package for space-constrained designs.

Applications

Screen orientation and gesture control in smartphones, tablets, and wearables.
Shock and vibration monitoring in industrial equipment and predictive maintenance systems.
Motion-activated wake-up and power management for IoT sensor nodes and remote trackers.
Activity recognition and step counting in fitness and healthcare monitoring devices.
Tilt sensing and leveling in robotics, drones, and automotive navigation systems.

Technical Specifications

Manufacturer Part Number	KX022-1020
Sensor Type	3-Axis Digital Accelerometer
Full-Scale Range	±2g, ±4g, ±8g (Selectable)
Output Interface	I2C (up to 3.4 MHz), SPI (up to 10 MHz)
Supply Voltage	1.71V to 3.6V
Operating Current	Low Power Mode: ~10 µA (typical)
Data Buffer	256-byte FIFO
Embedded Features	Tap/Double-Tap Detection, Orientation, Free-Fall, Wake-Up
Package Type	LGA-12 (2.0 x 2.0 x 0.9 mm)
Certification	RoHS Compliant
Operating Temperature	-40°C to +85°C

Frequently Asked Questions

What is the operating voltage range for the KX022-1020 accelerometer?

The KX022-1020 operates from a supply voltage (VDD) of 1.71V to 3.6V. An internal regulator provides a stable 1.8V core voltage, ensuring consistent performance across this range. This makes it compatible with common 1.8V, 3.0V, and 3.3V logic systems found in microcontrollers and embedded processors.

How do I communicate with the sensor using I2C or SPI?

The sensor supports both I2C (up to 3.4 MHz) and SPI (up to 10 MHz) protocols. The interface is selected via the CSB pin: pulling it high enables I2C mode, while pulling it low enables SPI mode. For I2C, the 7-bit slave address is configurable. The digital interface pins are not 5V-tolerant; use level shifters if interfacing with 5V systems.

What motion detection features are built into the KX022?

The KX022 includes programmable algorithms for detecting directional single-tap, double-tap, and device orientation (portrait/landscape). It also features a free-fall detection function. These features are configurable via registers, allowing you to set thresholds, timing windows, and generate interrupt signals to wake a host microcontroller, saving system power.

Does the sensor require calibration?

No, the KX022-1020 is factory-calibrated for offset and sensitivity, providing stable and accurate output data out of the package. This eliminates the need for user-level calibration in most applications. A built-in self-test function is available to verify the mechanical and electrical integrity of the sensor after board assembly.

What is the purpose of the 256-byte FIFO buffer?

The integrated 256-byte FIFO buffer allows the accelerometer to store sample data internally. This enables the host microcontroller to enter low-power sleep modes for extended periods while the sensor continues logging data. The host can then wake up and read a batch of samples in a single transaction, significantly reducing system-level power consumption.