MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MMAS40GWB/D
Micromachined Accelerometer
鹵40g
Amplified
The MMAS40G family of silicon capacitive, micro鈥搈achined accelerometers
features integral signal amplification, signal conditioning, a 4鈥損ole low鈥損ass
filter and temperature compensation. Zero鈥揋 offset, full scale span and filter
roll鈥搊ff are factory set and require no external passives. A calibrated self鈥搕est
feature mechanically displaces the seismic mass with the application of a digital
self鈥搕est signal.
The MMAS40G incorporates a single polysilicon seismic mass, suspended
between two fixed polysilicon plates (G鈥揷ell). The forces of acceleration move
the seismic mass, thereby resulting in a change in capacitance. The G鈥揷ell is
sealed at the wafer level, creating a particle鈥揻ree environment. The G鈥揷ell
features built鈥搃n damping and over鈥搑ange stops to protect it from mechanical
shock.
MMAS40G accelerometers are ideally suited for automotive crash detection
and recording, vibration monitoring, automotive suspension control, appliance
control systems, etc.
Features
鈥?/div>
Minimum Full Scale Measurement
鹵
40g
鈥?/div>
Calibrated, True Self鈥揟est
鈥?/div>
Senses Parallel to the Printed Circuit Board
鈥?/div>
Integral Signal Conditioning and 4鈥揚(yáng)ole Filter
鈥?/div>
Linear Output
鈥?/div>
Robust, High Shock Survivability
1
2
3
MMAS40GWB
MICROMACHINED
ACCELEROMETER
鹵
40g AMPLIFIED
(Wingback)
12
3
4
5
6
WB PACKAGE
CASE 456鈥?3
PIN NUMBER (WB)
NC (1)
Self鈥揟est
Output
4
5
6
Vref (2)
GND
VS (2)
SIMPLIFIED BLOCK DIAGRAM
+
+
6
+
VS
NOTES:
1. Connect to ground.
2. Bypass at pin to ground with 0.1
碌F
ceramic capacitor for specified perfor-
mance.
2
SELF鈥揟EST
g
G鈥揅ELL
A
4
Vref
LOW鈥揚(yáng)ASS FILTER
TEMPERATURE
COMPENSATION
3
OUTPUT
5
GND
(Replaces XMMAS40GWB)
漏
Motorola Sensor Device Data
Motorola, Inc. 1997
1
MMAS40GWB相關(guān)型號(hào)PDF文件下載
-
型號(hào)
版本
描述
廠商
下載
-
英文版
MICROMACHINED ACCELEROMETER 【40g AMPLIFIED
-
英文版
MICROMACHINED ACCELEROMETER 【40g AMPLIFIED
MOTOROLA [...
-
英文版
MICROMACHINED ACCELEROMETER 【40g
-
英文版
MICROMACHINED ACCELEROMETER 【40g
MOTOROLA [...
MOTOROLA
1
2
3
4
