SCA720-D01

Murata Electronics Oy

1/12

www.muratamems.fi

Doc.nr. 82171500

Rev.A

Data Sheet

SCA720-D01 SINGLE AXIS ACCELEROMETER WITH ANALOG INTERFACE

The SCA720 accelerometer consists of a silicon bulk micro machined sensing element chip and a signal

conditioning ASIC. The chips are mounted on a pre-molded package and wire bonded to appropriate contacts.

The sensing element and ASIC are protected with silicone gel and lid. The sensor has 12 SMD legs (Gull-wing

type).

Features

•

Single +5 V supply

•

Current consumption 2.5 mA typical

•

Ratiometric output in relation to supply

voltage (Vdd = 4.75 V...5.25 V)

•

Enhanced failure detection features

o

Digitally activated, true self-test by

proof mass deflection using

electrostatic force

o

Memory parity check during power

up, and self-test cycle.

o

Built in connection failure detection

•

Digitally activated, true self-test by proof

mass deflection using electrostatic force

•

Wide load drive capability (max. 20 nF)

•

True DC response

•

Full traceability information in 2D-matrix on

the lid

•

Qualified according to AEC-Q100 standard

Applications

SCA720 product family is targeted to automotive

applications with high stability and reliability

requirements. Automotive target applications are:

•

Electrically Controlled Suspension

•

Engine Anti-Vibration

Figure 1. Functional block diagram.

ASIC

EEPROM for calibration

constants (32 bit, pari ty check

)

Measuremen

t

circuitry

Gain &

filtering

4 programming lines

for factory use only

GND

Vout

Sensing

element

Digital self

test input

5V supply