Part # AD22151 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD22151 Linear Output Magnetic Field Sensor Data Sheet (REV. A)

Part Details:

Linear Output Magnetic Field Sensor AD22151 FEATURES FUNCTIONAL BLOCK DIAGRAM Adjustable Offset to Unipolar or Bipolar OperationLow Offset Drift over Temperature RangeGain Adjustable over Wide Range REF VCC/2 Low Gain Drift over Temperature RangeAdjustable First Order Temperature Compensation TEMP REF Ratiometric to VCC OUT AMP AD22151 APPLICATIONSAutomotive ISOURCE Throttle Position SensingPedal Position SensingSuspension Position Sensing SWITCHES DEMOD Valve Position Sensing Industrial Absolute Position SensingProximity Sensing VCC GENERAL DESCRIPTION NC The AD22151 is a linear magnetic field transducer. The sensoroutput is a voltage proportional to a magnetic field applied R1 R2 perpendicularly to the package top surface. The sensor combines integrated bulk Hall cell technology and 0.1 F instrumentation circuitry to minimize temperature related driftsassociated with silicon Hall cell characteristics. The architecture R3 maximizes the advantages of a monolithic implementation while OUTPUT allowing sufficient versatility to meet varied application require-ments with a minimum number of components. NC = NO CONNECT AD22151 Principal features include dynamic offset drift cancellation GND and a built-in temperature sensor. Designed for single 5 Vsupply operation, the AD22151 achieves low drift offset and Figure 1. Typical Bipolar Configuration with Low gain operation over ­40C to +150C. Temperature compensa- (< ­500 ppm) Compensation tion can accommodate a number of magnetic materials commonly V utilized in economic position sensor assemblies. CC R1 The transducer can be configured for specific signal gains tomeet various application requirements. Output voltage can beadjusted from fully bipolar (reversible) field operation to fully R4 unipolar field sensing. NC R2 The voltage output achieves near rail-to-rail dynamic range, 0.1 F

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AD22151.pdf Datasheet