Analog Magnetic Sensors - NVE
Description
AA/AB-Series Analog Magnetic Sensors
AA/AB-Series Analog Magnetic Sensors
Equivalent Circuit
V+ (Supply)
OUT-
OUT+
V- (GND)
Idealized Transfer Functions Output
Output
Features • Magnetometer and gradiometer configurations • Field ranges from <<0.
1 mT to >400 mT • Ultrasensitive, high-field, and low-hysteresis versions • Wheatstone bridge analog outputs • Operation to near-zero voltage • Up to 1 MHz bandwidth • Up to 150°C operating temperature • ULLGA4, TDFN6, MSOP8, and SOIC8 packages
Applications • Motion, speed, and position control • Low-field sensing • Motor commutator sensors • Noncontact current sensing
Field
AA-Series Magnetometer Transfer Function
Field Gradient
AB-Series Gradiometer Transfer Function
Description NVE’s analog GMR sensors have high sensitivity, excellent temperature stability, and small size.
Their versatility and wide sensing range makes them an excellent choice for a variety of analog sensing applications including industrial and automotive position, speed, and current sensors.
The sensors are configured as inherently temperaturecompensating Wheatstone bridges.
AA-Series sensors are magnetometers, which detect absolute magnetic field.
AB-Series sensors are differential gradiometers, which detect field gradients.
Three magnetometer subtypes are available: the standard AA-Series; the ultrasensitive “H” subtype; the high-field, kilooersted range “K” subtype, and the low-hysteresis “L” subtype.
Packages are as small as an ultraminiature 1.
1 x 1.
1 mm ULLGA4.
1
NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps@ nve.
com www.
nve.
com ©NVE Corporation
AA/AB-Series Analog Magnetic Sensors
Absolute Maximum Ratings
Parameter
AAxxx/ABxxx/AAL002
Supply voltage
AAHxxx/AAKxxx/ABHxxx/
AAL004/AAL024
Operating temperature
AAxxx/AAKxxx/ABxxx/AALxxx AAHxxx/ABHxxx
Storage temperature
AAxxx/AAKxx/ABxxx/AALxxx AAHxxx/ABHxxx
ESD (Human Body Model)
Applied magnetic field
Voltage from senso...
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