AA/AB-Series Analog Magnetic Sensors AA/AB-Series Analog Magnetic Sensors Equivalent Circuit Features Magnetometer and gradiometer configurations V+ (Supply) Field ranges from <<1 Oe to >4000 Oe Ultrasensitive, high-field, and low-hysteresis versions OUT- Wheatstone bridge analog outputs Operation to near-zero voltage OUT+ Up to 1 MHz Up to 150C operating temperature ULLGA4, TDFN6, MSOP8, and SOIC8 packages V- (GND) Applications Motion, speed, and position control Idealized Transfer Functions Low-field sensing Output Motor commutator sensors Output Noncontact current sensing Field Description Gradient NVEs analog GMR sensors have high sensitivity, excellent Field temperature stability, and small size. Their versatility and AA-Series AB-Series wide sensing range makes them an excellent choice for a Gradiometer Magnetometer variety of analog sensing applications including industrial Transfer Function Transfer Function and automotive position, speed, and current sensors. The sensors are configured as inherently temperature- compensating 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 Symbol Min. Max. Units AAxxx/ABxxx/AAL002 24 Supply voltage V Volts AAHxxx/AAKxxx/ABHxxx/ CC 12 AAL004/AAL024 AAxxx/AAKxxx/ABxxx/AALxxx 125 C Operating temperature 50 AAHxxx/ABHxxx 150 C AAxxx/AAKxx/ABxxx/AALxxx 65 135 Storage temperature C AAHxxx/ABHxxx 65 150 ESD (Human Body Model) 400 Volts Applied magnetic field H Unlimited Oe Voltage from sensor connections to center pad 63 Volts DC (applies to TDFN package only) 2 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 sensor-apps nve.com www.nve.com NVE Corporation