DataSheetWiki


AD22151 fiches techniques PDF

Analog Devices - Linear Output Magnetic Field Sensor

Numéro de référence AD22151
Description Linear Output Magnetic Field Sensor
Fabricant Analog Devices 
Logo Analog Devices 





1 Page

No Preview Available !





AD22151 fiche technique
Linear Output
Magnetic Field Sensor
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 VCC
APPLICATIONS
Automotive
Throttle Position Sensing
Pedal Position Sensing
Suspension Position Sensing
Valve Position Sensing
Industrial
Absolute Position Sensing
Proximity Sensing
GENERAL DESCRIPTION
The AD22151 is a linear magnetic field transducer. The sensor
output is a voltage proportional to a magnetic field applied
perpendicularly to the package top surface.
The sensor combines integrated bulk Hall cell technology and
instrumentation circuitry to minimize temperature related drifts
associated with silicon Hall cell characteristics. The architecture
maximizes the advantages of a monolithic implementation while
allowing sufficient versatility to meet varied application require-
ments with a minimum number of components.
Principal features include dynamic offset drift cancellation
and a built-in temperature sensor. Designed for single 5 V
supply operation, the AD22151 achieves low drift offset and
gain operation over –40C to +150C. Temperature compensa-
tion can accommodate a number of magnetic materials commonly
utilized in economic position sensor assemblies.
The transducer can be configured for specific signal gains to
meet various application requirements. Output voltage can be
adjusted from fully bipolar (reversible) field operation to fully
unipolar field sensing.
The voltage output achieves near rail-to-rail dynamic range,
capable of supplying 1 mA into large capacitive loads. The
signal is ratiometric to the positive supply rail in all configurations.
FUNCTIONAL BLOCK DIAGRAM
VCC/2
TEMP REF
AD22151
ISOURCE
REF
OUT AMP
SWITCHES
DEMOD
NC
R1
VCC
R2
0.1F
R3
OUTPUT
GND
NC = NO CONNECT
AD22151
Figure 1. Typical Bipolar Configuration with Low
(< –500 ppm) Compensation
VCC
R1
R4
NC
R2
0.1F
R3
OUTPUT
REV. A
GND
NC = NO CONNECT
AD22151
Figure 2. Typical Unipolar Configuration with
High (Ϸ –2000 ppm) Compensation
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved.

PagesPages 8
Télécharger [ AD22151 ]


Fiche technique recommandé

No Description détaillée Fabricant
AD22151 Linear Output Magnetic Field Sensor Analog Devices
Analog Devices
AD22157 Wheel Speed Sensor Analog Devices
Analog Devices

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche