SCA620-EF1V1B Datasheet, PDF (1/13 Pages) Murata Manufacturing Co., Ltd. – SCA620-EF1V1B SINGLE AXIS ACCELEROMETER WITH ANALOG INTERFACE

Datasheet
SCA620-EF1V1B
SCA620-EF1V1B SINGLE AXIS ACCELEROMETER WITH ANALOG
INTERFACE
The SCA620 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 8 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
• Qualified according to AEC-Q100 standard
Applications
SCA620 product family is targeted to automotive
applications with high stability and reliability
requirements. Typical applications include:
• Electronic Stability Control (ESC)
• Engine Vibration Measurement
• Roll Over
• Suspension
• Inclination
5V supply
Sensing
element
Measurement
circuitry
Gain &
filtering
Vout
EEPROM for calibration
constants (32 bit, pari ty check)
ASIC
Digital self
test input
GND
4 programming lines
for factory use only
Figure 1. Functional block diagram.
Murata Electronics Oy
www.muratamems.fi
Doc.nr. 82 507 00
1/12
Rev.B