abh001-00 NVE Corp., abh001-00 Datasheet

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abh001-00

Manufacturer Part Number
abh001-00
Description
Aa Series
Manufacturer
NVE Corp.
Datasheet
1.ABH001-00.pdf (16 pages)
AA and AB-Series Analog Sensors
NVE’s AA and AB-Series analog GMR sensors offer unique and unparalleled magnetic sensing
capabilities. These sensors are characterized by high sensitivity to applied magnetic fields, excellent
temperature stability, low power consumption, and small size. These characteristics make them
suitable for use in a wide variety of applications from rugged industrial and automotive position,
speed, and current sensors, to low-voltage, battery-powered sensors for use in hand-held
instrumentation and implantable medical devices. The unmatched versatility of these basic magnetic
sensors makes them an excellent choice for a wide range of analog sensing applications.
The AA-Series sensors use NVE’s patented GMR materials and on-chip flux concentrators to provide
a directionally sensitive output signal. These sensors are sensitive in one direction in the plane of the
IC, with a cosine-scaled falloff in sensitivity as the sensor is rotated away from the sensitive direction.
Also, these devices provide the same output for magnetic fields in the positive or negative direction
along the axis of sensitivity (omnipolar output). All sensors are designed in a Wheatstone bridge
configuration to provide temperature compensation. Two packages are offered, an SOIC8 and an
MSOP8. These sensors are also available in die form on a special-order basis.
There are three families of NVE’s basic AA-Series sensors: the standard AA-Series, the AAH-Series,
and the AAL-Series. Each of these sensor families uses a different GMR material, with its own
characteristics. The comparison table below summarizes the different characteristics of the GMR
materials:
The AB-Series sensors are differential sensor devices, or gradiometers, which take advantage of the
high output characteristics of NVE’s GMR materials. Two families of AB sensors are offered, the
standard AB-Series and the ABH-Series. They have operational characteristics similar to the AA and
AAH sensors described in the table above but with the bipolar linear output characteristics of a
differential sensor.
Within these different sensor families, customers can find an excellent match to their analog sensor
requirements.
Parameter
Sensitivity to Applied Fields
Field Range of Operation
Hysteresis
Temperature Range
www.nve.com
AA and AB-Series Analog Sensors
AA Series
High
High
Medium
High
phone: 952-829-9217 fax: 952-829-9189
- 12 -
AAH Series
Very High
Low
High
Very High
AAL Series
High
Medium
Low
Very High

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abh001-00 Summary of contents

Page 1

AA and AB-Series Analog Sensors NVE’s AA and AB-Series analog GMR sensors offer unique and unparalleled magnetic sensing capabilities. These sensors are characterized by high sensitivity to applied magnetic fields, excellent temperature stability, low power consumption, and small size. These ...

Page 2

... Min Max AB001-02 20 200 AB001-00 20 200 ABH001- Notes 1. Oersted (Oe Gauss in air. 2. Unipolar operation means exposure to magnetic fields of one polarity, for example 0 to +30 Gauss -50 Gauss. Bipolar operation (for example +10 Gauss) will increase nonlinearity and hysteresis www.nve.com AA and AB-Series Analog Sensors ...

Page 3

AA Sensors Features: • Excellent Sensitivity to Applied Magnetic Fields • Wheatstone Bridge Analog Output • Operating Temperature to 125°C Continuous • Wide Linear Range of Operation • Near-Zero Voltage Operation • >1MHz Frequency Response • Small, Low-Profile ...

Page 4

General Characteristics: Parameter Input Voltage Range Operating Frequency Operating Temperature Range Bridge Electrical Offset Signal Output at Max. Field Nonlinearity Hysteresis TCR TCOI TCOV Off Axis Characteristic ESD Tolerance Notes Oersted (Oe Gauss in air. 2. ...

Page 5

AAH Sensors Features: • Extremely High Sensitivity to Applied Magnetic Fields • Wheatstone Bridge Analog Output • Temperature Tolerance to 150°C Continuous • Near-Zero Voltage Operation • >1MHz Frequency Response • Small, Low-Profile Surface Mount Packages Applications: • ...

Page 6

General Characteristics: Parameter Input Voltage Range Operating Frequency Operating Temperature Range Bridge Electrical Offset Signal Output at Max. Field Nonlinearity Hysteresis TCR TCOI TCOV Off Axis Characteristic ESD Tolerance Notes Oersted (Oe Gauss in air. 2. ...

Page 7

AAL Sensors Features: • Excellent Sensitivity to Applied Magnetic Fields • Wheatstone Bridge Analog Output • Temperature Tolerance to 150°C Continuous • Very Low Magnetic Hysteresis • Near-Zero Voltage Operation • >1MHz Frequency Response • Small, Low-Profile Surface ...

Page 8

General Characteristics: Parameter Input Voltage Range Operating Frequency Operating Temperature Range Bridge Electrical Offset Signal Output at Max. Field Nonlinearity Hysteresis TCR TCOI TCOV Off Axis Characteristic ESD Tolerance Notes Oersted (Oe Gauss in air. 2. ...

Page 9

AAV Sensors Features: • Operates in Magnetic Saturation 200 Gauss • Half-Bridge or Individual Resistor Configurations • Sine and Cosine Outputs Available • Utilizes Spin Valve GMR Material • Precise Detection of Magnetic Field • Ultra-Small PLLP Package ...

Page 10

The end user must apply a saturating magnetic field (30 to 200 Oersteds) in the plane of the sensor in order for the sensor to operate. The movable layer will align with the applied magnetic field. As the applied field ...

Page 11

A drawing showing the ICs position in the package is given below. On each IC there is an arrow indicating the direction of the pinned layer. Functional Block Diagram, Marking, and Pinout, AAV001-11: R3 VCC R1 www.nve.com BBP R2 R3 ...

Page 12

Functional Block Diagram, Marking, and Pinout, AAV002-11: Cosine Output Specifications: Parameter Nominal Resistance of Each Resistor Maximum Resistance Decrease with Field Change Required Strength of Applied Magnetic Field Measurement Error Supply Voltage Offset Voltage Temperature Range of Operation Storage Temperature ...

Page 13

AB Sensors Features: • Excellent Sensitivity to Applied Magnetic Fields • Wheatstone Bridge Analog Output • Temperature Tolerance to 125°C Continuous • Wide Linear Range of Operation • Near-Zero Voltage Operation • >1MHz Frequency Response • Small, Low-Profile ...

Page 14

General Characteristics: Parameter Input Voltage Range Operating Frequency Operating Temperature Range Bridge Electrical Offset Signal Output at Max. Field Nonlinearity Hysteresis TCR TCOI TCOV Off Axis Characteristic ESD Tolerance Notes Oersted (Oe Gauss in air. 2. ...

Page 15

... Pinout V+ (supply) NVE X ABxxx-02 Pin 1 OUT A V- (ground) Axis of Sensitivity Magnetic Characteristics: Linear Part Saturation Range 1 Number Field (Oe ) (|Oe Min ABH001- www.nve.com Functional Block diagram OUT Resistor Sensitivity Resistance (% (Ohms) Max Min Max 40 0 ...

Page 16

General Characteristics: Parameter Input Voltage Range Operating Frequency Operating Temperature Range Bridge Electrical Offset Signal Output at Max. Field Nonlinearity Hysteresis TCR TCOI TCOV Off Axis Characteristic ESD Tolerance Notes Oersted (Oe Gauss in air. 2. ...

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