GENERAL DESCRIPTION
The IAM-20381HT is a grade-2 3-axis accelerometer for
Automotive non-safety applications, housed in a thin
3x3x0.75mm3
(16-pin LGA) package. It also features a
4096-byte FIFO that can lower the traffic on the serial bus
interface and reduce power consumption by allowing the
system processor to burst read sensor data and then go
into a low-power mode. IAM-20381HT, with its 3-axis
integration, enables manufacturers to eliminate the costly
and complex selection, qualification, and system level
integration of discrete devices, guaranteeing optimal
motion performance.
The accelerometer has a user-programmable full-scale
range of ±2g, ±4g, ±8g and ±16g. Factory-calibrated initial
sensitivity of sensors reduces production-line calibration
requirements.
Other industry-leading features include on-chip 16-bit
ADCs, programmable digital filters, an embedded
temperature sensor, and two programmable interrupts.
The device features I2C and SPI serial interfaces, a VDD
operating range of 1.71V to 3.6V, and a separate digital IO
supply, VDDIO from 1.71V to 3.6V.

APPLICATIONS
IAM-20381HT address a wide range of Automotive
applications, including but not limited to:
• Lift Gate Motion Detection
• Tilt measurement
• Infotainment and Navigation Systems
• Car Alarm
• Telematics
• Insurance Vehicle Tracking
• Drive Style Recording

FEATURES
• Digital-output X-, Y-, and Z-axis accelerometer with
a user-programmable full-scale range of ±2g, ±4g,
±8g and ±16g and integrated 16-bit ADCs
• User-programmable digital filters for accelerometer
and temperature sensor
• Embedded Self-test
• Two interrupt lines
• Wake-on-Motion interrupt for low-power operation
of applications processor
• Reliability testing performed according to
AEC–Q100: PPAP and qualification report available
upon request
• Final test at -40°C, 25°C, and +105°C