MMA1220KEG
Freescale Semiconductor
Rev 0, 11/2009
Technical Data
Low G
MMA1220KEG
Micromachined Accelerometer
The MMA series of silicon capacitive, micromachined accelerometers feature
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.
MMA1220KEG: Z-AXIS SENSITIVITY
Features MICROMACHINED
ACCELEROMETER
Integral Signal Conditioning
8g
Linear Output
Ratiometric Performance
4th Order Bessel Filter Preserves Pulse Shape Integrity
Calibrated Self-test
Low Voltage Detect, Clock Monitor, and EPROM Parity Check Status
Transducer Hermetically Sealed at Wafer Level for Superior Reliability
Robust Design, High Shocks Survivability
Qualified AEC-Q100, Rev. F Grade 2 (-40C/ +105C)
Typical Applications
Vibration Monitoring and Recording
KEG SUFFIX (Pb-FREE)
Appliance Control
16-LEAD SOIC
Mechanical Bearing Monitoring CASE 475-01
Computer Hard Drive Protection
Computer Mouse and Joysticks
Virtual Reality Input Devices
Sport Diagnostic Devices and Systems
ORDERING INFORMATION
Device Name Temperature Range Case No. Package
MMA1220KEG 40 to 125C 475-01 SOIC-16
MMA1220KEGR2 40 to 125C 475-01 SOIC-16, Tape & Reel
V
DD
N/C 1 16 N/C
Temp Comp
G-Cell
V
Integrator Gain Filter
OUT N/C 15 N/C
2
and Gain
Sensor
N/C
3 14 N/C
ST 13 N/C
4
V
5 12 N/C
OUT
ST
Control Logic &
Clock
11 N/C
STATUS 6
Self-test Oscillator
EPROM Trim Circuits
Generator
7 10 N/C
V V
SS SS
9 N/C
8
V
DD
STATUS
Figure 1. Simplified Accelerometer Functional Block Diagram Figure 2. Pin Connections
Freescale Semiconductor, Inc., 2009. All rights reserved.Table 1. Maximum Ratings
(Maximum ratings are the limits to which the device can be exposed without causing permanent damage.)
Rating Symbol Value Unit
Powered Acceleration (all axes) G 1500 g
pd
Unpowered Acceleration (all axes) G 2000 g
upd
Supply Voltage V -0.3 to +7.0 V
DD
(1)
Drop Test D 1.2 m
drop
Storage Temperature Range T -40 to +125 C
stg
1. Dropped onto concrete surface from any axis.
ELECTRO STATIC DISCHARGE (ESD)
WARNING: This device is sensitive to electrostatic
discharge.
Although the Freescale accelerometers contain internal performance or cause failure of the chip. When handling the
2 kV ESD protection circuitry, extra precaution must be taken accelerometer, proper ESD precautions should be followed
by the user to protect the chip from ESD. A charge of over to avoid exposing the device to discharges which may be
2000 volts can accumulate on the human body or associated detrimental to its performance.
test equipment. A charge of this magnitude can alter the
MMA1220KEG
Sensors
2 Freescale Semiconductor