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