HMC1021S-TR Honeywell, HMC1021S-TR Datasheet

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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. www.honeywell.com R1 R1 ...

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... C3 and D1 are chosen to properly drive Q3 from a logic level source, with C3 and D1 denoted as a “speed-up” network to quickly switch Q3 within a few nanoseconds of logic transitions 10U 1000 Q1 3 2N2222 2 X1 IRF7105P 2N2907 C1 R2 0.22U 1000 2N2222 X2 8 IRF7105N Vreset R5 220 10 Vdd Rsr1 Rsr2 1.8 1 Rsr3 1.8 www.honeywell.com ...

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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 C1 C1 ...

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... If the ADC range spans the power supply range, then a 10-bit ADC can have count 512 of 1024 used as the zero gauss point when the output rests at half-supply volt operation is required, the designer can substitute the IRF7507 part for the IRF7105 for 2.7 volt logic drive of the complementary MOSFET gates. 12 www.honeywell.com ...

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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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... 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 –RC in the product part number represents RoHS compliant. This labeling is temporary during the transition period from leaded to non-leaded parts ...