參數(shù)資料
型號(hào)： ADXL05
廠商： Analog Devices, Inc.
英文描述： Single Chip Accelerometer with Signal Conditioning(帶信號(hào)調(diào)節(jié)的單片加速計(jì))
中文描述： 單芯片加速度計(jì)信號(hào)調(diào)理（帶信號(hào)調(diào)節(jié)的單片加速計(jì)）
文件頁(yè)數(shù)： 12/20頁(yè)
文件大小： 292K
代理商： ADXL05
ADXL05
REV. B
–12–
With a dc coupled connection, any difference between a non-
ideal +1.8 V 0
g
level at V
PR
and the fixed +1.8 V level at the
buffer’s summing junction will be amplified by the gain of the
buffer. If the 0
g
level only needs to be approximate and the
buffer is operated a low gain, a single fixed resistor, R2, can still
be used. But to obtain the exact 0
g
output desired or to allow
the maximum output voltage swing from the buffer, the 0
g
offset will need to be externally trimmed using the circuit of Fig-
ure 23. Normally, a value of 100 k
is typical for R2.
T he buffer’s maximum output swing should be limited to
±
2 volts, which provides a safety margin of
±
0.25 volts before
clipping. With a +2.5 volt 0
g
level, the maximum gain the
buffer should be set to (R3/R1) equals:
Note that the value of R1 should be kept as large as possible,
20 k
or greater, to avoid loading down the V
PR
output.
T he device scale factor and 0
g
offset levels can be calibrated us-
ing the Earth’s gravity as explained in the section “calibrating
the ADX L05.”
2
Volts
200
mV
/
gTimesthe Max Applied Accelerationings
BUFFER
AMP
0.1μF
+5V
V
OUT
0.022μF
C1
C1
+3.4V
REF
COM
1.8V
8
9
10
1
2
3
4
0.022μF
C2
PRE-AMP
V
PR
R1
R3
V
IN–
5
ADXL05
6
R2
100k
0g
LEVEL
TRIM
50k
S.F. =R1
R1
≥
20k
V
X
FULL
SCALE
±
1g
±
2g
±
4g
±
5g
mV
per g
2000
1000
500
400
R1
k
30.1
40.2
40.2
49.2
R3
k
301
200
100
100
RECOMMENDED COMPONENT VALUES FOR
VARIOUS OUTPUT SCALE FACTORS
Figure 23. Typical Component Values for Circuit with
External 0 g Trimming
BUFFER
AMP
C3
0.1μF
+5V
V
OUT
0.022μF
C1
C1
+3.4V
REF
COM
1.8V
6
8
9
1
2
3
4
0.022μF
C2
PRE-AMP
V
PR
R1
R3
V
IN–
5
ADXL05
10
C4
R2
SCALE FACTOR =R1
1
2
π
R1 FL
C4 =
FOR A +2.5V 0gLEVEL,
IN AN AC COUPLED
CONFIGURATION,
R2 = 2.57 R3
FULL
SCALE
RANGE
±
2g
±
5g
±
2g
±
5g
±
5g
SCALE
FACTOR
IN
mV/g
1000
400
1000
400
400
DESIRED
FLIMIT, F
L
R1
IN
k
49.9
127
49.9
127
127
CLOSEST
C4
VALUE
0.10μF
0.039μF
1.0μF
1.5μF
15μF
R2 VALUE
IN k
FOR
+2.5V 0g
LEVEL
640
640
640
640
640
R3
IN
k
249
249
249
249
249
RECOMMENDED COMPONENT VALUES
30Hz
30Hz
3Hz
1Hz
0.1Hz
Figure 22. Typical Component Values for AC Coupled
Circuit
In order to force this current through R3, the same current
needs to flow from Pin 10 to ground through resistor R2. Since
Pin 10 is always held at +1.8 V, R2 is equal to:
R
2
=
1.8
Volts
IR
3
T herefore, for an ac coupled connection and a +2.5 V 0
g
output:
R
2
=
1.8
Volts
×
R
3
0.7
Volts
=
2.57
×
R
3
If ac coupling is used, the self-test feature must be monitored at
V
PR
, rather than at the buffer output (since the self test output is
a dc voltage).
Setting the Accelerometer’s 0
g
Bias Level, DC Coupled
Response
When a true dc (gravity) response is needed, the output from
the preamplifier, V
PR
, must be
dc coupled
to the buffer input.
For high gain applications, a 0
g
offset trim will also be needed.
T he external offset trim permits the user to set the 0
g
offset
voltage to exactly +2.5 volts, since this is at the center of the +5
volt power supply it will allow the maximum output swing from
the buffer without clipping.
相關(guān)PDF資料
PDF描述
ADXL105* High Accuracy +1 g to +5 g Single Axis iMEMS Accelerometer with Analog Input
ADXL105AQC Circular Connector; No. of Contacts:128; Series:LJTP02R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Box Mount Receptacle
ADXL105JQC High Accuracy 61 g to 65 g Single Axis iMEMS Accelerometer with Analog Input
ADXL105 High Accuracy +-1g to +-5g Single Axis Accelerometer with Analog Out(模擬輸出、高精度的測(cè)量范圍為+/-1g to +/-5g的單軸過(guò)荷傳感器)
ADXL210AE Low-Cost 10 g Dual-Axis Accelerometer with Duty Cycle
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADXL05AH 制造商:AD 制造商全稱:Analog Devices 功能描述:+-1 g to +-5 g Single Chip Accelerometer with Signal Conditioning
ADXL05BH 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Acceleration Detector
ADXL05EM-1 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述:
ADXL05JH 制造商:AD 制造商全稱:Analog Devices 功能描述:+-1 g to +-5 g Single Chip Accelerometer with Signal Conditioning
ADXL05KH 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Acceleration Detector
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*