Overview
The ADXL345TCCZ-EP-RL7 is an extended performance version of the ADXL345, a small, thin, ultralow power, 3-axis accelerometer produced by Analog Devices Inc. This device is designed for high-resolution (13-bit) measurement of acceleration up to ±16 g. It is particularly suited for industrial and aerospace applications due to its extended industrial temperature range of −55°C to +105°C. The ADXL345TCCZ-EP-RL7 measures both static acceleration of gravity in tilt-sensing applications and dynamic acceleration resulting from motion or shock. It features digital output data formatted as 16-bit twos complement, accessible through either SPI (3- or 4-wire) or I2C digital interfaces.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Measurement Range | ±2, ±4, ±8, ±16 | - | - | g |
| Supply Voltage (VS) | 2.0 | 2.5 | 3.6 | V |
| I/O Voltage Range (VDD I/O) | 1.7 | 1.8 | Vs | V |
| Operating Temperature Range | −55 | - | +105 | °C |
| Supply Current (ODR ≥ 100 Hz) | - | 140 | - | µA |
| Standby Mode Leakage Current | - | 0.1 | - | µA |
| Turn-On and Wake-Up Time (ODR = 3200 Hz) | - | 1.4 | - | ms |
| Package Type | - | - | - | 14-Terminal LGA |
| Device Weight | - | - | 30 | mg |
Key Features
- High-resolution (13-bit) measurement up to ±16 g with a resolution of 3.9 mg/LSB.
- Digital output data formatted as 16-bit twos complement, accessible through SPI (3- or 4-wire) or I2C digital interfaces.
- Special sensing functions including activity/inactivity sensing, tap sensing (single and double taps), and free-fall sensing.
- Integrated memory management system with a 32-level FIFO buffer to minimize host processor activity and lower system power consumption.
- Low power modes with intelligent motion-based power management and threshold sensing.
- Extended industrial temperature range of −55°C to +105°C, making it suitable for industrial and aerospace applications.
- Controlled manufacturing baseline, one assembly/test site, and one fabrication site.
- Enhanced product change notification and qualification data available on request.
Applications
- Industrial equipment: The ADXL345TCCZ-EP-RL7 is well-suited for various industrial applications due to its robust specifications and extended temperature range.
- Aerospace equipment: It meets the AQEC standard and is suitable for defense and aerospace applications.
- Tilt-sensing applications: Measures the static acceleration of gravity, enabling precise tilt measurements.
- Motion and shock detection: Detects dynamic acceleration resulting from motion or shock.
Q & A
- What is the measurement range of the ADXL345TCCZ-EP-RL7?
The measurement range is user-selectable and includes ±2 g, ±4 g, ±8 g, and ±16 g.
- What are the supported digital interfaces?
The device supports both SPI (3- or 4-wire) and I2C digital interfaces.
- What is the operating temperature range of the ADXL345TCCZ-EP-RL7?
The operating temperature range is −55°C to +105°C.
- What special sensing functions does the ADXL345TCCZ-EP-RL7 offer?
The device offers activity/inactivity sensing, tap sensing (single and double taps), and free-fall sensing.
- How does the ADXL345TCCZ-EP-RL7 manage power consumption?
The device features low power modes with intelligent motion-based power management and threshold sensing, and it includes a 32-level FIFO buffer to minimize host processor activity.
- What is the package type and dimensions of the ADXL345TCCZ-EP-RL7?
The device is packaged in a 14-terminal LGA with dimensions of 3 mm × 5 mm × 1 mm.
- Is the ADXL345TCCZ-EP-RL7 RoHS compliant?
Yes, the device is RoHS compliant.
- What are the typical supply current and standby mode leakage current?
The typical supply current is 140 µA (ODR ≥ 100 Hz), and the standby mode leakage current is 0.1 µA.
- What is the turn-on and wake-up time for the ADXL345TCCZ-EP-RL7?
The turn-on and wake-up time is approximately 1.4 ms at an ODR of 3200 Hz.
- What kind of memory management does the ADXL345TCCZ-EP-RL7 have?
The device features an integrated memory management system with a 32-level FIFO buffer.
