THREE-AXIS MAGNETIC SENSOR HYBRID Features 20-pin Wide Footp

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THREE-AXIS MAGNETIC SENSOR HYBRID Features 20-pin Wide Footp

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HMC2003
THREE-AXIS MAGNETIC SENSOR HYBRID
Features
20-pin Wide Footprint 0.75") Precision 3-axis Capability Factory Calibrated Analog Outputs micro-gauss gauss Dynamic Range Analog Output Volt/gauss (2.5V gauss) Onboard +2.5 Volt Reference Volt Single Supply Operation Very Magnetic Material Content -40° 85°C Operating Temperature Range
General Description
Honeywell HMC2003 high sensitivity, threeaxis magnetic sensor hybrid assembly used measure magnetic field strengths. Honeywell's most sensitive magneto-resistive sensors (HMC1001 HMC1002) utilized provide reliability precision this magnetometer design. HMC2003 interface analog with critical nodes brought interfaces maximum user flexibility. internal excitation current source selected gain offset resistors, reduces temperature errors plus gain offset drift. Three precision low-noise instrumentation amplifiers with 1kHz pass filters provide accurate measurements while rejecting unwanted noise.
APPLICATIONS Precision Compassing Navigation Systems Attitude Reference Traffic Detection Proximity Detection Medical Devices
BLOCK DIAGRAM
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HMC2003
SENSOR PRODUCTS SPECIFICATIONS Characteristics Magnetic Field Sensitivity Null Field Output Resolution Field Range Output Voltage Bandwidth Errors Linearity Error Hysteresis Error Repeatability Error Power Supply Effect Offset Strap Resistance Sensitivity Current Set/Reset Strap Resistance Current Tempcos Field Sensitivity Null Field Environments Temperature Shock Vibration Electrical Supply Voltage(3) Supply Current Unless otherwise stated, test conditions follows: Power Supply 12VDC, Ambient Temp 25°C, Set/Reset switching active Units: gauss Oersted air) 79.58 10E5 gamma Transient protection circuitry should added across unregulated power supply used. Operating Storage +125 Set/Reset Used Set/Reset Used -600 ±400 ±100 ppm/°C ppm/°C 2msec pulse, duty cycle ohms amps 46.5 47.5 10.5 48.5 ohms mA/gauss gauss Applied Field Sweep gauss Applied Field Sweep Sweeps across gauss Sweeps across gauss Varied from With gauss Applied Field Sweep 0.05 0.05 Maximum Magnetic Flux Density Each Magnetometer Axis Output 0.98 1.02 V/gauss µgauss gauss Conditions(1) Units(2)
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HMC2003
General Description
Honeywell's three axis magnetic sensor hybrid uses three permalloy magneto-resistive sensors custom interface electronics measure strength direction incident magnetic field. These sensors sensitive magnetic fields along length, width, height axis) 20-pin dual-in-line hybrid. Fields detected less than microgauss gauss. Analog outputs available each axis from hybrid. With sensitivity linearity this hybrid, changes detected earth's magnetic field provide compass headings attitude sensing. high bandwidth this hybrid allows anomaly detection vehicles, planes, other ferrous objects high speeds. hybrid packaged small printed circuit board 0.75") on-chip +2.5 voltage reference that operates from single supply. hybrid ideal applications that require two- three-axis magnetic sensing have size constraints need magnetic transducer (magnetometer) front-end. Note that hybrid's resistor values will vary, abscense some resistor components, likely individual factory calibration. Integrated with sensor elements composed wheatstone bridge circuits, magnetically coupled straps that replace need external field coils provide various modes operation. Honeywell patented integrated field offset straps (Xoff+ Xoff-, etc.) used electrically apply local magnetic fields bridges buck, offset applied incident field. This technique used cancel unwanted ambient magnetic fields (e.g. hardiron magnetism) closed loop field nulling measurement circuit. offset straps nominally provide gauss fields along sensitive axis 48mA offset current through each strap. HMC2003's magnetic sensors affected high momentary magnetic fields that lead output signal degradation. order eliminate this effect, maximize signal output, magnetic switching technique applied bridge using set/reset pins (SR+ SR-) that eliminates effect past magnetic history. Refer application notes that provide information set/reset circuits operation.
Pinout Diagram Package Drawing
Symbol
Millimeters 10.92 11.94 2.92 3.42 25.91 27.30 2.41 2.67 18.03 19.69
Inches 0.43 0.47 0.115 0.135 1.02 1.075 0.095 0.105 0.71 0.775
Ordering Information
Ordering Number
HMC2003
Product
Three-Axis Magnetic Sensor Hybrid
Solid State Electronics Center www.magneticsensors.com (800) 323-8295 Page
HMC2003
Honeywell reserves right make changes improve reliability, function design. Honeywell does assume liability arising application product circuit described herein; neither does convey license under patent rights rights others. 900151 02-04 Rev.
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THREE-AXIS MAGNETIC SENSOR HYBRID Features 20-pin Wide Footp

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