1

Motorola Sensor Device Data

Micromachined Accelerometer

The XMMA series of silicon capacitive, micromachined accelerometers

features; signal conditioning, a 4–pole low pass filter and temperature

compensation. Zero–g offset full scale span and filter cut–off are factory set and

require no external devices. A full system self–test capability verifies system

functionality.

The XMMA series of accelerometers is suitable for automotive crash

detection and recording, vibration monitoring, automotive suspension control,

appliance control systems, etc.

Features

• Minimum Full Scale Measurement ±44g

• Calibrated, Self–Test

• Integral Signal Conditioning and 4–Pole Filter

• Linear Output

• Robust, High Shock Survivability

• Ratiometric

• G–Cell, Hermetically Sealed at Wafer Level

• Two Packaging Options Available:

1) Plastic DIP for Z Axis Sensing (XMMA1000P)

2) Wingback for X Axis Sensing (XMMA2000W)

Typical Applications

• Automotive Crash Detection and Recording

• Automotive Suspension Control

• Vibration Monitoring and Recording

• Appliance Control

• Mechanical Bearing Monitoring

• Computer Hard Drive Protection

• Computer Mouse and Joysticks

• Virtual Reality Input Devices

• Sports Diagnostic Devices and Systems

SIMPLIFIED ACCELEROMETER FUNCTIONAL BLOCK DIAGRAM

G–CELL

SENSOR

INTEGRATOR

GAIN

FILTER

TEMP

COMP

SELF–TEST

CONTROL LOGIC &

EPROM TRIM CIRCUITS

CLOCK GEN.

OSCILLATOR

VDD

VOUT

VSS

VST

Senseon is a trademark of Motorola, Inc.

Replaces MMA1000P/D

Order this document

by XMMA1000P/D

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

XMMA1000P

XMMA2000W

DIP PACKAGE

CASE 648C–03

XMMA1000P

XMMA1000: Z AXIS SENSITIVITY

XMMA2000: X AXIS SENSITIVITY

MICROMACHINED

ACCELEROMETER

±50g

1

2 3

4 5

6 7

8

9

10

11

12

13

14

15

16

1

2

3

4

5

6

WB PACKAGE

CASE 456–03

XMMA2000W