Description
The IIS3DHHC is an ultra-low noise, high-stability three-axis linear accelerometer. The IIS3DHHC has a full scale of ±2.5 g and is capable of providing the measured accelerations to the application through an SPI 4-wire digital interface. The sensing element is manufactured using a dedicated micromachining process developed by STMicroelectronics to produce inertial sensors and actuators on silicon wafers. The IC interface is manufactured using a CMOS process that allows a high level of integration to design a dedicated circuit which is trimmed to better match the characteristics of the sensing element. The IIS3DHHC is available in a high-performance (low-stress) ceramic cavity land grid array (CC LGA) package and can operate within a temperature range of -40 °C to +85 °C. Product status link IIS3DHHC Product summary

Features
■ 3-axis, ±2.5 g full-scale
■ Ultra-low noise performance: 45 µg/√Hz
■ Excellent stability over temperature (<0.4 mg/°C) and time
■ 16-bit data output
■ SPI 4-wire digital output interface
■ Embedded FIFO (depth 32 levels)
■ Embedded temperature sensor
■ 12-bit temperature data output
■ High shock survivability
■ Extended operating temperature range (-40 °C to +85 °C)
■ ECOPACK, RoHS and “Green” compliant

Applications
■ Precision inclinometer
■ Antenna and platform pointing and leveling
■ Leveling instruments