HMC1002 Honeywell, HMC1002 Datasheet
HMC1002
Specifications of HMC1002
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HMC1002 Summary of contents
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... Honeywell’s Magnetic Sensors are among the most sensitive and reliable low-field sensors in the industry. Honeywell continues to maintain product excellence and performance by introducing innovative solid-state magnetic sensor solutions. These are highly reliable, top performance products that are delivered when promised. Honeywell’s magnetic sensor solutions provide real solutions you can count on. ...
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... Hz 27 gauss 5 MHz 5 gauss -0.32 -0.30 -0.28 %/°C -0.06 ±0.03 %/°C ±0.001 0.25 %/°C ±3 %FS ±0.5 10000 gauss 1.5 1.8 ohms 2.0 3.0 5 Amp 0.37 %/°C 2.5 3.5 ohms mA/gauss 0.39 %/°C www.honeywell.com °C ° ...
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... Current 0.1% duty cycle, or less, 2 sec current pulse Resistance Tempco Offset Straps Resistance Offset Constant Resistance Tempco * Tested at 25°C except stated otherwise. www.honeywell.com Conditions* Vbridge (Vb) referenced to GND Bridge current = 10mA per bridge Ambient Ambient, unbiased Best fit straight line ± 1 gauss ± ...
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... HMC1001/1002/1021/1022 KEY PERFORMANCE DATA 4 www.honeywell.com ...
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... In addition to the bridge circuits, each sensor has two on-chip magnetically coupled straps; the offset strap and the set/reset strap. These straps are Honeywell patented features for incident field adjustment and magnetic domain alignment; and eliminate the need for external coils positioned around the sensors. ...
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... Typically a reset pulse is sent first, followed by a set pulse a few milliseconds later. By shoving the magnetic domains in completely opposite directions, any prior magnetic disturbances are likely to be completely erased by the duet of pulses. 6 Out- Out- Sensitive Sensitive Axis Axis Out+ Out+ Gnd Gnd www.honeywell.com ...
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... For Vbridge = 5V and Sensitivity = 3.2mV/V/gauss, the bridge output (Voutput) is 16mV/gauss The noise density at 1Hz is about 30nV/sqrtHz or 1.8 micro-gauss/sqrtHz 1/f noise (0.1 to 10Hz sqrt[(ln10/0.1 64nV (rms micro-gauss (rms micro-gauss (pk-pk) White noise (BW = 1kHz) = 3.8 * sqrt[BW 120nV (rms micro-gauss (pk-pk) www.honeywell.com 7 ...
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... Tau) that is the capacitance in farads multiplied by the resistance, and is measured in seconds R sec = R sec Iset Iset Ireset Ireset 1 1 S/R+ S/R+ Rsr Rsr Vsr Vsr 5 5 Set/Reset Set/Reset Resistance Resistance Pulse Source Pulse Source S/R- S/R- Figure 2 – A Simple Set/Reset Circuit Strap Strap www.honeywell.com ...
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... Three of these strap resistances are chosen since many users desire 3-axis magnetic field sensing that comes from a pairing of a HMC1001 and a HMC1002. Also this combination of three series straps is also used on the HMC2003 hybrid sensor module and in the HMR2300 Smart Digital Magnetometer. ...
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... D1 1N4148 Figure 4 – Higher Voltage Set/Reset Circuit for HMC1001 & HMC1002 The three strap resistances are chosen at 1.8 ohms, or the worst-case high resistance points. Since they require a minimum of 3 amperes peak, the series combination requires at least 16.2 volts circuit Vdd of about 18 volts would about the right level to drive the strap load and allocate for losses in the C1 capacitor ESR and the MOSFET switches X1 and X2. C1’ ...
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... The resistors around the op-amp are chosen for earth’s magnetic field strength (about 0.6 gauss) levels and to match with the sensor impedance. The 4.99k-ohm resistors are a bridging impedance that is normally chosen times larger than the sensor bridge resistance elements (HMC1002) at 850 ohms. The www.honeywell.com ...
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... As a compass, the two outputs constrain the earth’s magnetic field measurement to horizontal orientations with the Xout and Yout feeding the heading equation of arctan (Yout/Xout) in degrees. The Xout direction of the HMC1002 should be mounted to the forward direction of the product for proper orientation tilt-compensated compass is desired, a third axis could be made from the spare LMV324N amplifier and a HMC1001 sensor ...
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... No special profile is required for the HMC10xx parts. The product is compatible with lead and no-lead eutectic solder paste reflow profiles. Honeywell recommends the adherence to solder paste manufacturer’s guidelines. The sensors may be reworked with soldering irons, but extreme care must be taken not to overheat the part’s circuit board pads. Irons with a tip temperature no greater than 315° ...
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... HMC1001/1002/1021/1022 PACKAGE OUTLINES 14 www.honeywell.com ...
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... ORDERING INFORMATION Ordering Number Product HMC1001 One Axis Magnetic Sensor, 8-pin SIP HMC1002 Two Axis Magnetic Sensor, 20-pin SOIC HMC1002-TR HMC1021S One Axis Magnetic Sensor, 8-pin SOIC HMC1021S-TR HMC1021Z One Axis Magnetic Sensor, 8-pin SIP HMC1022 Two Axis Magnetic Sensor, 16-pin SOIC HMC1022-TR * When ordering the – ...