Analog Devices Inc. ADXL37x MEMS Accelerometers
Analog Devices Inc. ADXL37x MEMS Accelerometers are ultralow-power, 3-axis devices for concussion and head trauma detection and high force event detection. The devices don't power cycle their front end to achieve low power operation. This allows the devices to not run the risk of aliasing the sensor's output. Analog Devices Inc. ADXL37x MEMS Accelerometers have many features to enable impact detection while providing system-level power reduction.
Features
- ADXL372
- ±200g measurement range
- 200Hz to 3200Hz user selectable bandwidth with a 4-pole anti-aliasing filter
- Selectable oversampling ratio
- Adjustable high-pass filter
- Ultra low power
- Power can be derived from a coin cell battery
- 22μA at 3200Hz ODR, 2.5V supply
- Low power, wake-up mode for low g activity detection
- 1.4μA instant on mode with adjustable threshold <0.1μA standby mode
- Built in features for system level power savings
- Autonomous interrupt processing without processor intervention
- Deep embedded FIFO to minimize host processor load
- Ultra low power event monitoring detects impacts and wakes up fast enough to capture the transient events
- Ability to capture and store peak acceleration values of events
- Adjustable, low g threshold activity and inactivity detection
- Wide supply range: 1.6V to 3.5V supply range
- Acceleration sample synchronization via external trigger
- SPI digital interface and limited I2C interface format support
- 12-bit output at 100mg/LSB scale factor
- -40°C to +105°C temperature range
- Small, thin, 3mm × 3.25mm × 1.06mm package
- ADXL375
- Low power as low as 35μA in measurement mode and 0.1μA in standby mode at VS=2.5V
- Power consumption scales automatically with bandwidth
- Embedded, 32-level FIFO buffer minimizes processor load
- Bandwidth of up to 1kHz
- Bandwidth selectable via serial command
- Shock event detection
- Activity/inactivity monitoring
- 2.0V to 3.6V supply voltage range
- 1.7V to VS I/O voltage range
- SPI (3- or 4-wire) and I2C digital interfaces
- -40°C to +85°C temperature range
- 10,000g shock survival
- Pb free/RoHS compliant
- 3mm × 5mm × 1mm LGA package
- ADXL377
- 3-axis sensing
- Small, low profile package
- 3mm × 3mm × 1.45mm LFCSP
- 300μA (typical) power rating
- 1.8V to 3.6V single-supply operation
- 10,000g shock survival
- Excellent temperature stability
- Bandwidth adjustment with a single capacitor
- RoHS/WEEE and lead-free compliant
Applications
- Impact and shock detection
- Asset health assessment
- Portable Internet of Things (IoT) edge nodes
- Concussion and head trauma detection
Evaluation Boards
Analog Devices Inc. ADXL37x Evaluation Boards
Simple evaluation boards for quick evaluation of the ADXL372, ADXL375, and ADXL377 devices.
Nordic Semiconductor Zestaw wieloczujnikowy do prototypowania Thingy:91™
Idealny do rozpoczęcia komórkowego projektu „IoT” przy użyciu systemu SiP nRF9160.
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Additional RESOURCES
Choosing the Right Accelerometer for Predictive Maintenance
Monitoring a machine’s health status enables predictive maintenance, allowing industries to anticipate breakdowns and realize substantial operational savings and downtime. To determine when it is the right time to trigger a maintenance operation, the manufacturer uses parameters such as vibration, noise, and temperature measurements. An abnormal vibration in a rotating machine (engine, generator, etc.) can signify a faulty ball bearing, axle misalignment, imbalance, or excessive looseness. Avoid being caught off guard and detect the first signs of an anomaly with a low noise, high bandwidth accelerometer.