MOTOROLA
Freescale Semiconductor, Inc.
Order Number: MMA1220D
Rev. 1, 06/2004
SEMICONDUCTOR TECHNICAL DATA
Low G
Micromachined Accelerometer
The MMA 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.
Features
鈥?Integral Signal Conditioning
鈥?Linear Output
鈥?Ratiometric Performance
鈥?4th Order Bessel Filter Preserves Pulse Shape Integrity
鈥?Calibrated Self-test
鈥?Low Voltage Detect, Clock Monitor, and EPROM Parity Check Status
鈥?Transducer Hermetically Sealed at Wafer Level for Superior Reliability
鈥?Robust Design, High Shocks Survivability
Typical Applications
鈥?Vibration Monitoring and Recording
鈥?Appliance Control
鈥?Mechanical Bearing Monitoring
鈥?Computer Hard Drive Protection
鈥?Computer Mouse and Joysticks
鈥?Virtual Reality Input Devices
鈥?Sport Diagnostic Devices and Systems
ORDERING INFORMATION
Device
MMA1220D
MMA1220DR2
Temperature
Range
鈥?40 to +125擄C
鈥?40 to +125擄C
Package
SOIC-16
SOIC-16, Tape & Reel
MMA1220D
MMA1220D: Z AXIS SENSITIVITY
MICROMACHINED
ACCELEROMETER
鹵8g
Freescale Semiconductor, Inc...
16 LEAD SOIC
CASE 475-01
PIN ASSIGNMENT
N/C
N/C
N/C
ST
V
OUT
STATUS
V
SS
V
DD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
V
DD
G-Cell
Sensor
Integrator
Gain
Filter
Temp
Comp
V
OUT
ST
Self-test
Control Logic &
EPROM
Trim Circuits
Oscillator
Clock
Gen.
V
SS
Status
Figure 1. Simplified Accelerometer Functional Block Diagram
REV 1
漏 Motorola, Inc. 2004
For More Information On This Product,
Go to: www.freescale.com