MMA1212D Freescale Semiconductor, MMA1212D Datasheet

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MMA1212D

Manufacturer Part Number
MMA1212D
Description
SENSOR ACCEL Z-AX +/-200G 16SOIC
Manufacturer
Freescale Semiconductor
Datasheet

Specifications of MMA1212D

Axis
Z
Acceleration Range
±225g
Sensitivity
10mV/g
Voltage - Supply
4.75 V ~ 5.25 V
Output Type
Analog
Bandwidth
400Hz
Mounting Type
Surface Mount
Package / Case
16-SOIC (0.300", 7.50mm Width)
Sensing Axis
Z
Acceleration
200 g
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Interface
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2006. All rights reserved.
Surface Mount
Micromachined Accelerometer
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
Functional Description
MMA1212EGR2
MMA1212DR2
Device Name
MMA1212EG
The MMA series of silicon capacitive, micromachined accelerometers feature
ST
MMA1212D
Integral Signal Conditioning
Linear Output
Ratiometric Performance
4
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
Vibration Monitoring and Recording
Impact Monitoring
th
Order Bessel Filter Preserves Pulse Shape Integrity
Figure 1. Simplified Accelerometer Functional Block Diagram
Self-test
Sensor
G-Cell
Temperature Range
–40° to 125°C
–40° to 125°C
–40° to 125°C
–40° to 125°C
Integrator
ORDERING INFORMATION
EPROM Trim Circuits
Control Logic &
STATUS
Gain
Case No.
475-01
475-01
475-01
475-01
Oscillator
Filter
SOIC16, Tape & Reel
SOIC16, Tape & Reel
Comp
Temp
Package
SOIC-16
SOIC-16
Generator
Clock
V
V
V
OUT
DD
SS
STATUS
MMA1212D: Z AXIS SENSITIVITY
V
V
N/C
N/C
N/C
V
OUT
Figure 2. Pin Connections
ST
DD
SS
MMA1212
ACCELEROMETER
EG SUFFIX (Pb-FREE)
MICROMACHINED
16-LEAD SOIC
1
2
3
4
5
6
7
8
CASE 475-01
D SUFFIX
±200g
Rev 4, 03/2006
16
15
14
13
12
11
10
9
MMA1212D
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C

Related parts for MMA1212D

MMA1212D Summary of contents

Page 1

... SOIC16, Tape & Reel 475-01 SOIC-16 475-01 SOIC16, Tape & Reel V DD Temp V Gain Filter Comp OUT Clock Oscillator Generator V SS MMA1212D Rev 4, 03/2006 MMA1212 MMA1212D: Z AXIS SENSITIVITY MICROMACHINED ACCELEROMETER ±200g D SUFFIX EG SUFFIX (Pb-FREE) 16-LEAD SOIC CASE 475-01 16 N/C 1 N/C N/C 15 N/C 2 N ...

Page 2

... Although the Freescale accelerometers contain internal 2kV ESD protection circuitry, extra precaution must be taken by the user to protect the chip from ESD. A charge of over 2000 volts can accumulate on the human body or associated test equipment. A charge of this magnitude can alter the MMA1212D 2 Symbol G pd ...

Page 3

... DD 2.7 3.25 4.0 50 — 260 — 0.2 — 0.25 — V –0.25 DD — — 100 — 300 — — — 5.0 — 10 — /2. DD MMA1212D Unit mV/g mV/g FSO mVrms 1/2 µV/(Hz ) mVpk µ kHz FSO kHz 3 ...

Page 4

... Acceleration Figure 3. Transducer Figure 4. Equivalent Physical Model MMA1212D 4 PRINCIPLE OF OPERATION Filtering The Freescale accelerometers contain an on board 4-pole switched capacitor filter. A Bessel implementation is used because it provides a maximally flat delay response (linear phase) thus preserving pulse shape integrity ...

Page 5

... Signal switching frequency should be selected such that they C2 do not interfere with the internal accelerometer sampling frequency. This will prevent aliasing errors A 0.01 µF 1 kΩ 0.1 µ 0.1 µF Power Supply Accelerometer to Microcontroller to decouple the power DD Figure MMA1212D 0.1 µ ...

Page 6

... When positioned as shown, the Earth's gravity will result in a positive 1g output. MMA1212D 6 Dynamic Acceleration Sensing Direction +Z Acceleration of the package in the +Z direction (center plate moves in the −Z direction) will result in an increase in the output. Activation of Self test moves the center plate in the −Z direction, resulting in an increase in the output. − ...

Page 7

... Freescale Semiconductor footprint, the packages will self-align when subjected to a solder reflow process always recommended to design boards with a solder mask layer to avoid bridging and shorting between solder pads. 0.380 in. 9.65 mm 0.080 in. 2.03 mm Figure 7. Footprint SOIC-16 (Case 475-01) 0.050 in. 1.27 mm 0.024 in. 0.610 mm MMA1212D 7 ...

Page 8

... MMA1212D 8 PACKAGE DIMENSIONS CASE 475-01 ISSUE C 16-LEAD SOIC PAGE Sensors Freescale Semiconductor ...

Page 9

... Sensors Freescale Semiconductor PACKAGE DIMENSIONS CASE 475-01 ISSUE C 16-LEAD SOIC PAGE MMA1212D 9 ...

Page 10

... Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com MMA1212D Rev. 4 03/2006 RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http://www.freescale.com Freescale sales representative. For information on Freescale’ ...

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