Analog Magnetic Sensors
AA/AB-Series Analog Magnetic Sensors
AA/AB-Series Analog Magnetic Sensors
Equivalent Circuit
V+ (Supply)
OUT-
OUT+
...
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...
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