1- and 2-Axis Magnetic Sensors HMC1001/1002/1021/1022 The Honeywell HMC100x and HMC102x magnetic sensors are one and two-axis surface mount sensors designed for low field magnetic sensing. By adding supporting signal processing, cost effective magnetometers or compassing solutions are enabled. Th ese small, low cost solutions are easy to assemble for high volume OEM designs. Applications for the HMC100x and HMC102x sensors include Compassing, Navigation Systems, Magnetometry, and Current Sensing. The HMC100x and HMC102x sensors utilize Honeywells Anisotropic Magnetoresistive (AMR) technology that provides advantages over coil based magnetic sensors. They are extremely sensitive, low field, solid-state magnetic sensors designed to measure direction and magnitude of Earths magnetic fields, from tens of micro-gauss to 6 gauss. Honeywells 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. Honeywells magnetic sensor solutions provide real solutions you can count on. FEATURES BENEFITS Surface Mount 1 and 2-Axis Sensors Easy to Assemble & Compatible with High Speed SMT Assembly 4 4 Low Cost Designed for High Volume, Cost Effective OEM Designs 4 4 4-Element Wheatstone Bridges Low Noise Passive Element Design 4 4 Low Voltage Operations (2.0V) Compatible for Battery Powered Applications 4 4 Available in Tape & Reel Packaging High Volume OEM Assembly 4 4 Patented Offset and Set/Reset Straps Stray Magnetic Field Compensation 4 4 Wide Field Range (up to +/-6 Oe) Sensor Can Be Used in Strong Magnetic Field Environments 4 4 HMC1001/1002/1021/1022 HMC1001/1002 SPECIFICATIONS Characteristics Conditions* Min Typ Max Units Bridge Elements Supply Vbridge (Vb) referenced to GND - 5.0 12 Volts Resistance Bridge current = 10mA per bridge 600 850 1200 ohms Operating Temperature Ambient -55 150 C Storage Temperature Ambient, unbiased -55 175 C Field Range Full scale (FS) total applied field -2 +2 gauss Linearity Error Best fit straight line %FS 1 gauss 0.1 0.5 2 gauss 1.0 2.0 Hysteresis Error 3 sweeps across 2 gauss 0.05 0.10 %FS Repeatability Error 3 sweeps across 2 gauss 0.05 0.10 %FS S/R Repeatability Output variation after alternate S/R pulses Vb = 5V, I = 3A 100 SR V Bridge Offset Offset = (OUT+) (OUT-) -60 -15 +30 mV Field = 0 gauss after Set pulse, Vb = 8V Sensitivity Set/Reset Current = 3A 2.5 3.2 4.0 mV/V/gauss Noise Density 1Hz, Vb=5V 29 nV/sqrt Hz Resolution 10Hz Bandwidth, Vb=5V 27 gauss Bandwidth Magnetic signal (lower limit = DC) 5 MHz Disturbing Field Sensitivity starts to degrade. 5 gauss Use S/R pulse to restore sensitivity. Sensitivity Tempco T = -40 to 125C, Vb=8V -0.32 -0.30 -0.28 %/C A T = -40 to 125C, Ibridge=5mA -0.06 A Bridge Offset Tempco T = -40 to 125C, No Set/Reset 0.03 %/C A T = -40 to 125C, With Set/Reset 0.001 A Bridge Ohmic Tempco T = -40 to 125C 0.25 %/C A Cross-Axis Effect Cross field = 1 gauss, Happlied = 1 gauss 3 %FS With set/reset 0.5 Max. Exposed Field No perming effect on zero reading 10000 gauss Set/Reset Straps Resistance Measured from S/R+ to S/R- 1.5 1.8 ohms Current 2.0 3.0 5 Amp 0.1% duty cycle, or less, 2sec current pulse Resistance Tempco T = -40 to 125C 0.37 %/C A Offset Straps Resistance Measured from OFF+ to OFF- 2.5 3.5 ohms Offset Constant DC Current 46 51 56 mA/gauss Field applied in sensitive direction Resistance Tempco T = -40 to 125C 0.39 %/C A * Tested at 25C except stated otherwise. 2 www.honeywell.com