mma1270keg National Semiconductor Corporation, mma1270keg Datasheet

no-image

mma1270keg

Manufacturer Part Number
mma1270keg
Description
Freescale Semiconductor Technical Data
Manufacturer
National Semiconductor Corporation
Datasheet
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2009. All rights reserved.
Low G
Micromachined Accelerometer
signal conditioning, a 2-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
Typical Applications
MMA1270EG
MMA1270EGR2
MMA1270KEG*
MMA1270KEGR2*
*Part number sourced from a different facility.
ST
The MMA series of silicon capacitive, micromachined accelerometers feature
Device Name
Integral Signal Conditioning
Linear Output
2nd Order Bessel Filter
Calibrated Self-test
EPROM Parity Check Status
Transducer Hermetically Sealed at Wafer Level for Superior Reliability
Robust Design, High Shock Survivability
Qualified AEC-Q100, Rev. F Grade 2 (-40°C/ +105°C)
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
Figure 1. Simplified Accelerometer Functional Block Diagram
Self-test
Sensor
G-Cell
Temperature Range
Integrator
EPROM Trim Circuits
Control Logic &
–40° to 105°C
–40° to 105°C
–40° to 105°C
–40° to 105°C
STATUS
ORDERING INFORMATION
Gain
Oscillator
Case No.
Filter
475-01
475-01
475-01
475-01
Temp Comp
and Gain
SOIC-16, Tape & Reel
SOIC-16, Tape & Reel
Generator
Clock
Package
SOIC-16
SOIC-16
V
V
V
DD
OUT
SS
MMA1270KEG: Z-AXIS SENSITIVITY
STATUS
V
V
V
V
V
V
OUT
ST
Figure 2. Pin Connections
DD
SS
SS
SS
SS
MMA1270KEG
KEG SUFFIX (Pb-FREE)
ACCELEROMETER
MICROMACHINED
16-LEAD SOIC
1
2
3
4
5
6
7
8
CASE 475-01
±2.5g
Rev 0, 11/2009
MMA1270KEG
16
15
14
13
12
11
10
9
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C

Related parts for mma1270keg

mma1270keg Summary of contents

Page 1

... SOIC-16, Tape & Reel 475-01 SOIC-16 475-01 SOIC-16, Tape & Reel V Temp Comp V Gain Filter and Gain Clock Oscillator Generator V MMA1270KEG Rev 0, 11/2009 MMA1270KEG MMA1270KEG: Z-AXIS SENSITIVITY MICROMACHINED ACCELEROMETER ±2.5g KEG SUFFIX (Pb-FREE) 16-LEAD SOIC CASE 475- OUT SS 14 ...

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 MMA1270KEG 2 Symbol G pd ...

Page 3

... Hz — +1.0 % FSO 3.5 6.5 mVrms μg/√Hz 700 — 1.25 1.6 — 0 — μA – 125 – — 0.4 — — — 2.0 ms — V – 0.25 DD — 100 pF 50 — — 5.0 % FSO /2. DD MMA1270KEG Ω 3 ...

Page 4

... Acceleration Figure 3. Transducer Figure 4. Equivalent Physical Model MMA1270KEG 4 PRINCIPLE OF OPERATION Filtering The Freescale accelerometers contain an onboard 2-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

... OUTPUT do not interfere with the internal accelerometer SIGNAL sampling frequency. This will prevent aliasing errors. C2 0.1 μ A kΩ 0.1 μ 0.1 μ 0.1 μF Power Supply Accelerometer to Microcontroller to decouple the power DD Figure MMA1270KEG 0.1 μ ...

Page 6

... DYNAMIC ACCELERATION +g – 2.50 V OUT 1. When positioned as shown, the Earth's gravity will result in a positive 1g output MMA1270KEG 6 ACCELERATION SENSING DIRECTIONS OUT STATUS N/C pins are recommended to be left FLOATING STATIC ACCELERATION + 3.25 V OUT – 1.75 V OUT 16 N ...

Page 7

... Sensors Freescale Semiconductor PACKAGE DIMENSIONS CASE 475-01 ISSUE C 16-LEAD SOIC PAGE MMA1270KEG 7 ...

Page 8

... MMA1270KEG 8 PACKAGE DIMENSIONS CASE 475-01 ISSUE C 16-LEAD SOIC PAGE Sensors Freescale Semiconductor ...

Page 9

... 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 or contact your Freescale sales representative. For information on Freescale’s Environmental Products program http://www.freescale.com/epp. MMA1270KEG Rev. 0 11/2009 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products ...

Related keywords