- 您现在的位置：买卖IC网 > PDF目录375270 > ADXL213AE-REEL (ANALOG DEVICES INC) Low Cost 1.2 g Dual Axis Accelerometer PDF资料下载
参数资料
| 型号： | ADXL213AE-REEL |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | Low Cost 1.2 g Dual Axis Accelerometer |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, CQCC8 |
| 封装： | 5 X 5 MM, 2 MM HEIGHT, HERMETIC SEALED, CERAMIC, LCC-8 |
| 文件页数： | 10/12页 |
| 文件大小： | 359K |
| 代理商： | ADXL213AE-REEL |
ADXL213
Peak-to-peak noise values give the best estimate of the
uncertainty in a single measurement. Table 6 gives the typical
noise output of the ADXL213 for various C
X
and C
Y
values.
Table 6. Filter Capacitor Selection (C
X
, C
Y
)
C
X
, C
Y
(μF)
(m
g
)
10
0.47
0.64
50
0.1
1.4
100
0.047
2
500
0.01
4.5
USING THE ADXL213 WITH OPERATING
VOLTAGES OTHER THAN 5 V
The ADXL213 is tested and specified at V
S
= 5 V; however, it can
be powered with V
S
as low as 3 V or as high as 6 V. Some perfor-
mance parameters will change as the supply voltage is varied.
Rev. 0 | Page 10 of 12
Bandwidth(Hz)
RMS Noise
Peak-to-Peak Noise
Estimate (m
g
)
3.8
8.6
12
27.2
The ADXL213 output varies proportionally to supply voltage. At
V
S
= 3 V, the output sensitivity is typically 28%/
g
.
The zero
g
bias output is ratiometric, so the zero
g
output is
nominally equal to 50% at all supply voltages.
The output noise also varies with supply voltage. At V
S
= 3 V, the
noise density is typically 200 μ
g
/√Hz.
Self-test response in
g
is roughly proportional to the square of
the supply voltage. So at V
S
= 3 V, the self-test response is
equivalent to approximately 270 m
g
(typical), or 8%.
The supply current decreases as the supply voltage decreases.
Typical current consumption at V
DD
= 3 V is 450 μA.
USING THE ADXL213 AS A DUAL-AXIS TILT
SENSOR
One of the most popular applications of the ADXL213 is tilt
measurement. An accelerometer uses the force of gravity as an
input vector to determine the orientation of an object in space.
An accelerometer is most sensitive to tilt when its sensitive axis
is perpendicular to the force of gravity, i.e., parallel to the earth’s
surface. At this orientation, its sensitivity to changes in tilt is
highest. When the accelerometer is oriented on axis to gravity,
i.e., near its +1
g
or –1
g
reading, the change in output accelera-
tion per degree of tilt is negligible. When the accelerometer is
perpendicular to gravity, its output changes nearly 17.5 m
g
per
degree of tilt. At 45°, its output changes at only 12.2 m
g
per
degree and resolution declines.
Dual-Axis Tilt Sensor: Converting Acceleration to Tilt
When the accelerometer is oriented so both its X and Y axes are
parallel to the earth’s surface, it can be used as a 2-axis tilt
sensor with a roll axis and a pitch axis. Once the output signal
from the accelerometer has been converted to an acceleration
that varies between –1
g
and +1
g
, the output tilt in degrees is
calculated as follows:
PITCH
=
ASIN
(
A
X
/1
g
)
ROLL
=
ASIN
(
A
Y
/1
g
)
Be sure to account for overranges. It is possible for the
accelerometers to output a signal greater than ±1
g
due to
vibration, shock, or other accelerations.
相关PDF资料 |
PDF描述 |
|---|---|
| ADXL213AE | Low Cost 1.2 g Dual Axis Accelerometer |
| ADXL213EB | Low Cost 1.2 g Dual Axis Accelerometer |
| ADXL311 | Low Cost, Ultracompact 【2 g Dual-Axis Accelerometer |
| ADXL311JE | Low Cost, Ultracompact 【2 g Dual-Axis Accelerometer |
| ADXL311JE-REEL | Low Cost, Ultracompact 【2 g Dual-Axis Accelerometer |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADXL213B | 制造商:Analog Devices 功能描述:LOW COST +/- 1.2G DUAL AXIS ACCELEROMETER - Bulk |
| ADXL213EB | 功能描述:BOARD EVALUATION FOR ADXL213 RoHS:否 类别:编程器，开发系统 >> 评估板 - 传感器 系列:iMEMS® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| ADXL213WAEZA-REEL | 制造商:Analog Devices 功能描述: |
| ADXL250 | 制造商:AD 制造商全称:Analog Devices 功能描述:+-5 g to +-50 g, Low Noise, Low Power, Single/Dual Axis iMEMS Accelerometers |
| ADXL250AQC | 制造商:Analog Devices 功能描述:Special Function IC Package/Case:14-SOIC |
发布紧急采购，3分钟左右您将得到回复。