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| 型号： | MXA2500GF |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Absolute Outputs |
| 中文描述： | 改进的，超低噪音【一点七克双轴加速度计的绝对输出 |
| 文件页数： | 3/8页 |
| 文件大小： | 340K |
| 代理商： | MXA2500GF |
MEMSIC MXA2500G/M Rev. E
Page 3 of 8
1/19/2005
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage (VDD, VDA) ………………...-0.5 to +7.0V
Storage Temperature ……….…………-65
°C to +150°C
Acceleration, constant…………….……………..50,000 g
Shock (Powered) , Half Sine (shock rating limited by test
equipment, virtually unlimited by design)
Level (g)
Duration(ms)
3000
0.5
2000
1.0
1000
2.0
700
3.0
500
5.0
*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.
Package Characteristics
Package
θ
JA
θ
JC
Device Weight
LCC-8
110
°C/W 22°C/W
< 1 gram
Pin Description: LCC-8 Package
Pin
Name
Description
1
TOUT
Temperature (Analog Voltage)
2
AOUTY
Y-Axis Acceleration Signal
3
Gnd
Ground
4
VDA
Analog Supply Voltage
5
AOUTX
X-Axis Acceleration Signal
6
Vref
2.5V Reference
7
Sck
Optional External Clock
8
VDD
Digital Supply Voltage
Ordering Guide
Model
Package Style
Temperature Range
MXA2500GL
LCC8
RoHS compliant
0 to 70
°C
MXA2500GF
LCC8, Pb-free
0 to 70
°C
MXA2500ML
LCC8
RoHS compliant
-40 to 105
°C
MXA2500MF
LCC8, Pb-free
-40 to 105
°C
All parts are shipped in tape and reel packaging.
Caution: ESD (electrostatic discharge) sensitive device.
8
4
1
2
3
7
6
5
Top V ie w
ME
MS
IC
X
+ g
Y
+ g
Figure 1: 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. Small circle indicates pin one(1).
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 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
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| MXA2500GL | Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500G | Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500JV | Ultra Low Cost, 【1.0 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500J | Ultra Low Cost, 【1.0 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500MF | Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Absolute Outputs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MXA2500GL | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Improved, Ultra Low Noise 【1.7 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500J | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Ultra Low Cost, ±1.0 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500JV | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Ultra Low Cost, 【1.0 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500K | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Ultra Low Cost, ±1.0 g Dual Axis Accelerometer with Absolute Outputs |
| MXA2500KV | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Ultra Low Cost, ±1.0 g Dual Axis Accelerometer with Absolute Outputs |
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