Dual-Axis, 60 g to 480 g Sensor
with SPI and PSI5
ADXL251 Data Sheet
FEATURES GENERAL DESCRIPTION User selectable sensor g ranges: ±60 g, ±120 g, ±240 g, ±480 g
Dual x-axis and y-axis sensor
Compliant to PSI5 Version 2.1 airbag substandard
Synchronous operation
PSI5-P10P-500/3L and others
Daisy-chain operation with bidirectional communication
Application level serial peripheral interface (SPI)
communication
Selectable 16-bit or 10-bit sensor data
Independently programmable g range and time slot for each
axis
Independent fault discrimination for each axis
Fully differential analog signal chain
0.25 µs data interpolation routine
User selectable, continuous auto-zero operation
High resistance to electromagnetic interference (EMI) and
radio frequency interference (RFI)
SPI mode supply voltage: 3.3 V and 5 V, +5%
PSI5 mode supply voltage range: 4.5 V to 11.0 V
Qualified for automotive applications The ADXL251 is a dual-axis, integrated satellite sensor with …