Freescale Semiconductor
Technical Data
Low G
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.
Features
• Integral Signal Conditioning
• 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 (-40°C/ +105°C)
Typical Applications
• Vibration Monitoring and Recording
• Appliance Control
• Mechanical Bearing Monitoring
• Computer Hard Drive Protection
• Computer Mouse and Joysticks
• Virtual Reality Input Devices
• Sport Diagnostic Devices and Systems
Device Name
MMA1220KEG
www.DaMtaMSAhe1e2t240UK.EcoGmR2
ORDERING INFORMATION
Temperature Range Case No.
–40° to 125°C
475-01
–40° to 125°C
475-01
Package
SOIC-16
SOIC-16, Tape & Reel
MMA1220KEG
Rev 0, 11/2009
MMA1220KEG
MMA1220KEG: Z-AXIS SENSITIVITY
MICROMACHINED
ACCELEROMETER
±8g
KEG SUFFIX (Pb-FREE)
16-LEAD SOIC
CASE 475-01
G-Cell
Sensor
ST
Self-test
Integrator
Temp Comp
Gain Filter
and Gain
VDD
VOUT
Control Logic &
EPROM Trim Circuits
Oscillator
Clock
Generator
VSS
STATUS
Figure 1. Simplified Accelerometer Functional Block Diagram
N/C
N/C
N/C
ST
VOUT
STATUS
VSS
VDD
1
2
3
4
5
6
7
8
16 N/C
15 N/C
14 N/C
13 N/C
12 N/C
11 N/C
10 N/C
9 N/C
Figure 2. Pin Connections
© Freescale Semiconductor, Inc., 2009. All rights reserved.
