AD22151YR-REEL Analog Devices Inc, AD22151YR-REEL Datasheet

AD22151YR-REEL

Manufacturer Part Number

AD22151YR-REEL

Description

IC MAGNETIC FIELD SNSR LIN 8SOIC

Manufacturer

Analog Devices Inc

Type

Linear - Unipolar, Bipolarr

Datasheet

1.AD22151YRZ.pdf (8 pages)

Specifications of AD22151YR-REEL

Rohs Status

RoHS non-compliant

Sensing Range

Unlimited

Voltage - Supply

4.5 V ~ 6 V

Current - Supply

10mA

Current - Output (max)

15mA

Output Type

Analog, Ratiometric

Operating Temperature

-40°C ~ 150°C

Package / Case

8-SOIC (0.154", 3.90mm Width)

Features

Current page: 1 of 8
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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 –40∞C to +150∞C. 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.

REV. A

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.

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

APPLICATIONS

Automotive

Industrial

Throttle Position Sensing

Pedal Position Sensing

Suspension Position Sensing

Valve Position Sensing

Absolute Position Sensing

Proximity Sensing

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

GND

Figure 1. Typical Bipolar Configuration with Low

(< –500 ppm) Compensation

Figure 2. Typical Unipolar Configuration with

High (

FUNCTIONAL BLOCK DIAGRAM

–2000 ppm) Compensation

NC = NO CONNECT

TEMP REF

Magnetic Field Sensor

SOURCE

SWITCHES

AD22151

Linear Output

AD22151

www.analog.com

0.1 F

DEMOD

OUT AMP

OUTPUT

REF

Related parts for AD22151YR-REEL

AD22151YR-REEL Summary of contents

Page 1

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 APPLICATIONS Automotive Throttle Position Sensing Pedal ...

Page 2

... 5.0 5.0 0.1 ± 1 ± 6.0 950 5.7 2.4 8-Lead SOIC –40 ORDERING GUIDE Temperature Model Range AD22151YR –40∞C to +150∞C 8-Lead SOIC R-8 AD22151YR-REEL –40∞C to +150∞C 8-Lead SOIC R-8 –2– Max Unit 6 mV/G ...

Page 3

PIN CONFIGURATION TC1 AD22151 TC2 2 7 REF TOP VIEW TC3 3 6 GAIN (Not to Scale) GND 4 5 OUTPUT AREA OF SENSITIVITY (Not to Scale *SHADED AREA ...

Page 4

AD22151 0.025 0.020 0.015 0.010 0.005 0 –600 –400 –200 0 FIELD – Gauss Figure 5. Signal Drift over Temperature (–40 ∞ +150 ∞ C) vs. Field (–200 ppm Supply 0.25 0.20 0.15 0.10 0.05 0 ...

Page 5

Second, pack- age stress effect alters the specific operating parameters of the gain compensation, particularly the specific crossover tempera- ± 10∞C). ture of TC1, TC3 ( CONFIGURATION AND COMPONENT SELECTION There are ...

Page 6

AD22151 Knowing the values of R3 and R4 and noting Equation 2, the parallel combination of R2 and R4 required is: Ω 071 . ( ) 15 1 – Thus:   1  ...

Page 7

FIELD – Gauss Figure 15. Integral Nonlinearity vs. Field REV. A 200 400 600 Figure 16. Absolute Offset Volts vs. Temperature OUTLINE DIMENSIONS 8-Lead ...

Page 8

AD22151 Revision History Location 2/03—Data Sheet changed from REV REV. A. Change to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . ...

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