General description

The SCA1000 accelerometer consists of two silicon bulk micro machined sensing element chips and a signal conditioning ASIC. The chips aremounted on a pre-molded package and wire bonded to appropriate contacts. The sensing elements and ASIC are protected with silicone gel and lid. The sensor has 12 SMD legs (Gull-wing type).

SCA1000 family Accelerometer Features

• Single +5V supply

• Two ratiometric analog outputs in relation to supply voltage (Vdd = 4.75....5.25V)

•Wide load driving capability

• Serial Peripheral Interface (SPI) compatible

•Provides digital output for both channels

•Supports testing and programming

• Non-volatile programming features

•Factory programmable filter settings ( 400Hz, 1 kHz, WB, Ext_C )

•Offset and sensitivity calibration

•Linear temperature compensation

• Enhanced failure detection features

•True self test by deflecting the sensing elements’proof mass by electrostatic force. Deflection voltage is adjustable with two memory bits for both channels. The self-test is channel specific, and separately activated for both channels by digital on-off commands via dedicated pins or via SPI bus.

•Continuous sensing element interconnection failurecheck