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reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD22151
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1997
Linear Output
Magnetic Field Sensor
FUNCT IONAL BLOCK DIAGRAM
TEMP REF
I
SOURCE
DEMOD
SWITCHES
OUT AMP
REF
V
CC
/2
AD22151
FEATURES
Adjustable Offset to Unipolar or Bipolar Operation
Low Offset Drift Over Temperature Range
Gain Adjustable Over Wide Range
Low Gain Drift Over Temperature Range
Adjustable First Order Temperature Compensation
Ratiometric to V
CC
APPLICATIONS
Automotive
Throttle Position Sensing
Pedal Position Sensing
Suspension Position Sensing
Valve Position Sensing
Industrial
Absolute Position Sensing
Proximity Sensing
GE NE RAL DE SCRIPT ION
T he AD22151 is a linear magnetic field transducer. T he sensor
output is a voltage proportional to a magnetic field applied
perpendicularly to the package top surface.
T he sensor combines integrated bulk Hall cell technology and
instrumentation circuitry to minimize temperature related drifts
associated with silicon Hall cell characteristics. T he architecture
maximizes the advantages of a monolithic implementation while
allowing sufficient versatility to meet varied application require-
ments with a minimum number of components.
Principle features include dynamic offset drift cancellation and a
built-in temperature sensor. Designed for single +5 volt supply
operation, the AD22151 achieves low drift offset and gain op-
eration over –40
°
C to +150
°
C. T emperature compensation can
accommodate a number of magnetic materials commonly uti-
lized in economic position sensor assemblies.
T he transducer may be configured for specific signal gains de-
pendent upon application requirements. Output voltage can be
adjusted from fully bipolar (reversible) field operation to fully
unipolar field sensing.
T he voltage output achieves near rail-to-rail dynamic range,
capable of supplying 1 mA into large capacitive loads. T he sig-
nal is ratiometric to the positive supply rail in all configurations.
NC
R1
GND
R3
R2
V
CC
AD22151
NC = NO CONNECT
OUTPUT
0.1
m
F
Figure 1. Typical Bipolar Configuration with Low
(< –500 ppm) Compensation
NC
R1
GND
R3
R2
V
CC
AD22151
NC = NO CONNECT
OUTPUT
0.1
m
F
R4
Figure 2. Typical Unipolar Configuration with High
(≈
–2000 ppm) Compensation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD22151YR-REEL | 制造商:Analog Devices 功能描述:Magnetic Field Sensor 8-Pin SOIC N T/R |
| AD22151YRZ | 功能描述:IC MAGNETIC FIELD SNSR LIN 8SOIC RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，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(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| AD22151YRZ-RL | 功能描述:IC MAGNETIC FIELD SENSOR 8SOIC RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，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(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| AD22157 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Wheel Speed Sensor For ABS Systems |
| AD22180 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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