Date: 23/05/2012

200g range, Analog 3-axis MEMS accelerometer sensor for range of applications

Analog Devices, Inc. (ADI) has introduced analog, 3-axis, high-g MEMS accelerometer with analog output. The ADXL377 measures acceleration of high-impact events resulting from shock and vibration, within the full-scale range of ±200 g with no signal saturation. ADXL377 features a bandwidth of 1600 Hz.

ADXL377 is suggested for contact sports where the detection of concussive forces can reveal indictors of Traumatic Brain Injury (TBI). ADXL377 is also suggested for use in industrial equipment where shock levels must be closely monitored. ADI's new 3-axis accelerometer eliminates the need for alignment and the placement of orthogonal sensors, which significantly simplifies design. The board space requirement is reduced by up to five times that of typical solutions requiring multiple, single-axis accelerometers, according to ADI.

ADXL377 is used in the IZOD 2012 INDYCAR Series driver impact safety system.. INDYCAR to upgrade the sensors located in their communications earpieces, which are used to measure driver impacts triggered by collisions during practice, time trials and during races, according to Jeff Horton, director of engineering for INDYCAR.

"The new Analog Devices ADXL377 3-axis accelerometer is going to be a great addition to our ear sensor program," said Horton. "Not only will the smaller size greatly reduce the manufacturing time needed to place the components into the custom ear molds that we make for each of the drivers, it will allow us to place the accelerometer closer to the ear canal opening which should help with the coupling of the accelerometer to the driver's head for a more accurate reading. In the past we had to use three separate ICs in each ear to obtain the same data."

"With TBI now a serious medical concern in many facets of life - from athletes and workers to military personnel - ADI is helping customers design smaller, more accurate and simpler impact systems," said Mark Martin, vice president and general manager, MEMS/Sensors group, Analog Devices. "Because so many of these applications require extreme mobility, the ability to eliminate orthogonal sensors while simultaneously lowering energy consumption means that these battery-operated devices can run longer between charges."

Other Features include power consumption of 300 µA (typical), Single-supply operation of 1.8 V to 3.6 V, and 10,000 g shock survival.

Availability and Pricing:

Product Sample Availability and Volume Shipping Full Production Price Each Per 1,000 Packaging
ADXL377 Now September $4.79 3 mm × 3 mm × 1.45 mm16-lead LFCSP
For more info visit www.analog.com