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參數(shù)資料
| 型號： | A1321LUA-TL |
| 元件分類： | 磁阻傳感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, 10mT, 0.20-4.70V, RECTANGULAR, THROUGH HOLE MOUNT |
| 封裝： | SIP-3 |
| 文件頁數(shù)： | 7/11頁 |
| 文件大?。?/td> | 763K |
| 代理商： | A1321LUA-TL |
A1321/A1322/A1323
RATIOMETRIC, LINEAR
HALL EFFECT SENSOR
Rev. 1.6 28Aug03 CMG
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright 2003 Allegro MicroSystems, Inc.
CHARACTERISTIC DEFINITIONS
Quiescent Voltage Output. In the quiescent state (no
magnetic field), the output equals one half of the supply
voltage over the operating voltage and temperature
range. Due to internal component tolerances and
thermal considerations, there is a tolerance on the
quiescent voltage output and on the quiescent voltage
output as a function of supply voltage and ambient
temperature. For purposes of specification, the
quiescent voltage output as a function of temperature is
defined in magnetic flux density units (B) as
V
OQ(
T)(B)
)
25
(
)
25
(
)
(
)
(
C
OQ
T
OQ
Sens
V
A
°
=
(1)
This calculation yields the device’s equivalent accuracy,
over the operating temperature range, in gauss.
Sensitivity. The presence of a south-pole magnetic
field perpendicular to the package face (the branded
surface) will increase the output voltage from its
quiescent value toward the supply voltage rail by an
amount proportional to the magnetic field applied.
Conversely, the application of a north pole will decrease
the output voltage from its quiescent value. This
proportionality is specified as the sensitivity of the device
and is defined as
B
V
Sens
B
O
B
O
2
)
(
)
(
+
=
(2)
The stability of sensitivity as a function of temperature is
defined as
%
100
)
25
(
)
25
(
)
(
)
(
×
=
°
C
TA
T
Sens
(3)
Ratiometric. The A132X family features a ratiometric
output. The quiescent voltage output and sensitivity are
proportional to the supply voltage (ratiometric).
The percent ratiometric change in the quiescent voltage
output is defined as
V
OQ(
V)
%
100
5
/
)
5
(
)
(
×
=
V
CC
V
OQ
Vcc
OQ
(4)
and the percent ratiometric change in sensitivity is
defined as
%
100
5
/
)
5
(
)
(
)
(
×
=
V
Sens
CC
V
Vcc
V
(5)
Linearity and Symmetry. The on-chip output stage is
designed to provide a linear output with a supply voltage
of 5 V. Although application of very high magnetic fields
will not damage these devices, it will force the output
into a non-linear region. Linearity in percent is
measured and defined as
%
100
)
(
2
)
2
/
(
)
(
×
=
+
OQ
B
O
OQ
B
O
V
Lin
(6)
%
100
)
(
2
)
2
/
(
)
(
×
=
OQ
B
O
OQ
B
O
V
Lin
(7)
and output symmetry as
%
100
)
(
)
(
)
(
×
=
B
O
OQ
B
O
V
Sym
(8)
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| A1322LLHLT-T | MAGNETIC FIELD SENSOR-HALL EFFECT, 0.20-4.70V, RECTANGULAR, SURFACE MOUNT |
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| A1322ELHLT | 功能描述:IC SENSOR HALL EFFECT SOT23W RoHS:否 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A1322ELHLT-T | 功能描述:IC SENSOR HALL EFFECT SOT23W RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標準包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點:可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
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