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參數(shù)資料
| 型號： | MXD2020EL |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Ultra Low Noise, Low offset Drift +1g, -1g Dual Axis Accelerometer with Digital Outputs |
| 中文描述： | 超低噪音，低失調(diào)漂移1克，，1克雙軸加速度計的數(shù)字輸出 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 289K |
| 代理商： | MXD2020EL |
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (V
DD
, V
DA
) ………………...-0.5 to +7.0V
Storage Temperature ……….…………-65
°
C to +150
°
C
Acceleration ……………………………………..50,000
g
*Stresses above those listed under Absolute Maximum Ratings may cause permanent
damage to the device. This is a stress rating only; the functional operation of the
device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
Pin Description: LCC-8 Package
Pin
Name
Description
1
T
OUT
Temperature (Analog Voltage)
2
D
OUTY
Y-Axis Acceleration Digital Signal
3
Gnd
Ground
4
V
DA
Analog Supply Voltage
5
D
OUTX
X-Axis Acceleration Digital Signal
6
V
ref
2.5V Reference
7
Sck
Optional External Clock
8
V
DD
Digital Supply Voltage
MEMSIC MXD2020GL/ML/NL/HL
Page 3 of 7
2002.08.29.1
Ordering Guide
Model
Package
Style
LCC - 8
Digital
Output
100 Hz
Temperature
Range
0 to 70
°
C
0 to 70
°
C
-40 to 105
°
-40 to 105
°
MXD2020GL
MXD2020HL
LCC - 8
400Hz
MXD2020ML
LCC - 8
100 Hz
MXD2020NL
LCC - 8
400 Hz
All parts are shipped in tape and reel packaging.
Caution:
ESD (electrostatic discharge) sensitive device.
8
4
1
2
3
7
6
5
Top View
M
X +g
Y +g
Note:
The MEMSIC logo’s arrow indicates the +X sensing
direction of the device. The +Y sensing direction is rotated 90
°
away from the +X direction following the right-hand rule.
THEORY OF OPERATION
The MEMSIC device is a complete dual-axis acceleration
measurement system fabricated on a monolithic CMOS IC
process. The device operation is based on heat transfer by
natural convection and operates like other accelerometers
having a proof mass. The stationary element, or ‘proof
mass’, in the MEMSIC sensor is a gas.
A single heat source, centered in the silicon chip is
suspended across a cavity. Equally spaced
aluminum/polysilicon thermopiles (groups of
thermocouples) are located equidistantly on all four sides of
the heat source (dual axis). Under zero acceleration, a
temperature gradient is symmetrical about the heat source,
so that the temperature is the same at all four thermopiles,
causing them to output the same voltage.
Acceleration in any direction will disturb the temperature
profile, due to free convection heat transfer, causing it to be
asymmetrical. The temperature, and hence voltage output
of the four thermopiles will then be different. The
differential voltage at the thermopile outputs is directly
proportional to the acceleration. There are two identical
acceleration signal paths on the accelerometer, one to
measure acceleration in the x-axis and one to measure
acceleration in the y-axis. Please visit the MEMSIC
website at www.memsic.com for a picture/graphic
description of the free convection heat transfer principle.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MXD2020FL | Ultra Low Noise, Low offset Drift +1g, -1g Dual Axis Accelerometer with Digital Outputs |
| MXD2020HL | Improved, Ultra Low Noise Dual Axis Accelerometer with Digital Outputs |
| MXD2020ML | Improved, Ultra Low Noise Dual Axis Accelerometer with Digital Outputs |
| MXD2020NL | Improved, Ultra Low Noise Dual Axis Accelerometer with Digital Outputs |
| MXD2020G | Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Digital Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MXD2020F | 制造商:MEMSIC INC 功能描述:DIGITAL ACCELEROMETER +- 1G DU |
| MXD2020FL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Ultra Low Noise, Low offset Drift +1g, -1g Dual Axis Accelerometer with Digital Outputs |
| MXD2020G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Digital Outputs |
| MXD2020GL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Improved, Ultra Low Noise Dual Axis Accelerometer with Digital Outputs |
| MXD2020H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Digital Outputs |
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