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Description

The AIS25BA is an ultralow noise, low latency, wide bandwidth, 3-axis digital

accelerometer with a dedicated TDM interface designed to address automotive nonsafety

applications, in particular, wideband active noise control (ANC) and vibration

monitoring.

The AIS25BA has a user-selectable full-scale range of ±3.85/±7.7 g, a time-division

multiplexing (TDM) interface for the sensor data, and an I?C interface for device

configuration.

The AIS25BA is available in a small thin plastic land grid array package (LGA) and is

guaranteed to operate over an extended temperature range from -40 °C to +125 °C.

Features

? AEC-Q100 qualified

? 3-axis accelerometer with user-selectable full-scale: ±3.85/±7.7 g

? Wide and flat frequency response: from dc up to 2.4 kHz (typ)

? Low latency (entire reading chain): 266 μs @ 2 kHz (typ)

? Ultralow noise density (typ: 30 μg/√Hz for X and Y axes; 50 μg/√Hz for Z-axis)

? TDM (8/16/24 kHz) slave interface for sensor data and I?C interface for

configuration

? Supply voltage: 1.71 V to 2.1 V

? Extended temperature range from -40 °C to +125 °C

? Embedded self-test

? Compact package: LGA 2.5 x 2.5 x 0.86 mm 14-lead

? 10000 g high shock survivability

? Lead-free, ECOPACK and RoHS compliant

Applications

? Wideband active noise control (ANC)

? Vibration monitoring