HMC1051Z Honeywell, HMC1051Z Datasheet

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... High Accuracy Compassing (Error <0.01°) • Low Power Operation Down to 1.8V • Patented On-chip Set/Reset Straps Product Description The Honeywell HMC1051Z and HMC1052 are high performance magnetoresistive sensor designs on a single chip. The advantages of these patented chips include perfectly orthogonal (HMC1052), ultra small size and low power capability in miniature surface mount packages ...

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... HMC1051Z / HMC1052 SPECIFICATIONS Characteristics Bridge Elements Supply Resistance Field Range Full scale (FS) – total applied field Sensitivity Bridge Offset Bandwidth Magnetic signal (lower limit = DC) Noise Density Resolution Disturbing Field Use S/R pulse to restore sensitivity. Max. Exposed No perming effect on zero reading Field ...

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... HMC1051Z / HMC1052 SPECIFICATIONS Characteristics Set/Reset Strap Resistance Current Resistance Tempco (available on die) Offset Straps Resistance Measured from OFFSET+ to OFFSET- Offset Constant Field applied in sensitive direction Resistance Tempco * Tested at 25°C except stated otherwise. Pin Configurations (Arrow indicates direction of applied field that generates a positive output voltage after a SET pulse.) ...

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... HMC1051Z / HMC1052 Basic Device Operation The HMC1051 and HMC1052 are single-axis and two-axis linear magnetic sensors designed as a Wheatstone bridges formed by a magnetoresistive metal film. With the power supply applied to the bridge, the sensors converts any incident magnetic field in the sensitive direction to a balanced voltage output. The magnetoresistive sensors are made of a nickel-iron (Permalloy) thin-film deposited on a silicon wafer in pattern of resistive strips ...

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... For simple magnetic field sensing applications such Magnetic Anomaly Detectors (MADs) and Magnetometers, a similar circuit to the compass application can be implemented. In the example circuit in Figure 4, a HMC1051Z sensor bridge is used with a low voltage capable dual op-amp to detect sufficient intensity of a magnetic field. Uses of the circuit include ferrous object detection such as vehicle detection, a “ ...

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... The HMC1051 and HMC1052 sensors can be utilized in a novel way for moderate to high current sensing applications using a nearby external conductor providing the sensed magnetic field to the bridge. Figure 5 shows a HMC1051Z used as a current sensor with thermistor element performing a temperature compensation function for greater accuracy over a wide range of operational temps. Selection of the temperature compensation (tempco) resistors used depends on the thermistor chosen and is dependant on the thermistor’ ...

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... HMC1051Z / HMC1052 Three Axis Compassing with Tilt Compensation For full three-axis compassing, the circuit depicted in Figure 6 shows both a HMC1051Z and a HMC1052 used for sensing the magnetic field in three axes. A two-axis accelerometer is also shown to provide pitch and roll (tilt) sensing to correct the three-axis data into to the corrected two-axis heading. The accelerometer can be substituted with a fluidic 2-axis tilt sensor if desired ...

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... HMC1051Z / HMC1052 To Sensor Circuits * Used when Vcc = 5.0 volts, jumper when using Vcc = 3.3 volts or less. PACKAGE DRAWING 8-PIN SIP Ordering Information Ordering Number HMC1051Z HMC1052 Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others ...