KXTJ2-1009

## **FEATURES** 

- Ultra-small Package - 2x2x0.9mm LGA 

- User-selectable g Range and Output Data Rate 

- 8-bit, 12-bit, and 14-bit Resolution 

- Low Power Consumption 

- Internal voltage regulator 

- User-configurable wake-up function 

- Digital I[2] C 

## **APPLICATIONS** 

   - User Interface 

   - Power Management 

   - Active/Inactive Monitoring 

   - Device Orientation 

   - Inclination and Tilt Sensing 

   - Gesture Recognition 

   - Pedometer/Activity Monitoring 

- Lead-free Solderability 

- Excellent Temperature Performance 

- High Shock Survivability 

- Factory Programmable Offset and Sensitivity 

- Self-test Function 

## **FOR** 

- Smartphones and Mobile Devices 

- Laptops 

- Gaming and Virtual Reality 

- Health and Fitness 

## **PRODUCT OVERVIEW** 

The KXTJ2 is one of our smallest tri-axis accelerometers, designed for mobile applications. It offers excellent power performance along with an embedded motion wake-up feature, Fast-mode I2C  and up to 14-bit resolution. The KXTJ2 is delivered in a 2 x 2 x 0.9 mm, 12-pin, LGA package with an operating temperature range of -40°C to +85°C. 

The KXTJ2 sensor offers improved shock, reflow, and temperature performance, and the ASIC has internal voltage regulators that allow operation from 1.8 V to 3.6 V within the specified product performance. 

The performance parameters below are programmed and tested at 2.6 volts and T = 25°C.  The device can accept supply voltages from 1.8V to 3.6V.  Due to internal voltage regulators, there should be minimal change with supply voltage variations. 

|The performance parameters below are programmed and tested at 2.6 volts and T = 25°C.  The device can accept supply voltages from 1.8V to<br>3.6V.  Due to internal voltage regulators, there should be minimal change with supply voltage variations.|The performance parameters below are programmed and tested at 2.6 volts and T = 25°C.  The device can accept supply voltages from 1.8V to<br>3.6V.  Due to internal voltage regulators, there should be minimal change with supply voltage variations.|The performance parameters below are programmed and tested at 2.6 volts and T = 25°C.  The device can accept supply voltages from 1.8V to<br>3.6V.  Due to internal voltage regulators, there should be minimal change with supply voltage variations.|The performance parameters below are programmed and tested at 2.6 volts and T = 25°C.  The device can accept supply voltages from 1.8V to<br>3.6V.  Due to internal voltage regulators, there should be minimal change with supply voltage variations.|
|---|---|---|---|
|**PERFORMANCE SPECIFICATIONS**||||
|**PARAMETERS**|**UNITS**|**KXTJ2-1009**|**CONDITION**|
|Range|g|±2.0, ±4.0, ±8.0|User-selectable full-scale output range|
|Sensitivity1|counts/g|64, 32, 16|8-bit|
|||1024, 512, 256|12-bit|
|||1024 typical|14-bit2|
|0g Offset vs. Temp|mg/°C|0.2|-40°C to +85°C|
|Sensitivity vs. Temp|%/°C|±0.01 (xy) ±0.03 (z) typical|-40°C to +85°C|
|Mechanical Resonance3|Hz|3500 (xy) 1800 (z) typical|-3dB|
|Output Data Rate (ODR)4|Hz|0.781 min; 50 typical; 1600 max||
|Bandwidth (-3dB)5|Hz|800|RES = 0|
|||ODR/2|RES = 1|
|Non-Linearity|% of FS|1.0 typical|% of full scale output|
|Cross-axis Sensitivity|%|2.0 typical||
|I2C Communication Rate|MHz|3.4 max||
|Power Supply|V|2.6 typical|1.8V – 3.6V|
|Current Consumption6|µA|135 typical|High resolution (RES = 1)|
|||10 typical|Low resolution (RES = 0)|
|||2 typical|Standby|
|**ENVIRONMENTAL SPECIFICATIONS**||||
|**PARAMETERS**|**UNITS**|**KXTJ2-1009**|**CONDITION**|
|Operating Temperature|°C|-40 to 85|Powered|
|Storage Temperature|°C|-55 to 150|Un-powered|
|Mechanical Shock|g|5,000, 0.5 ms<br>10,000, 0.2 ms|Powered or un-powered,<br>halversine|
|ESD|V|2,000|Human body model|



## **NOTES** 

1 Resolution and acceleration ranges are user selectable via I2C. 2 14-bit Resolution is only available for registers 0x06h – 0x0Bh in the 8g Full Power mode. 3 Resonance as defined by the dampened mechanical sensor. 4 User selectable through I2C. 5 User selectable; dependent on ODR and RES. 

6 Current varies with Output Data Rate (ODR).