Micropower Omnipolar Hall Sensor AH3661
Rated supply voltage 2.4 V ~ 5.5 V;
Omnipolar operating, no “N” or “S” pole in excitation magnetic
field, high magnetic sensitivity, highly symmetry in positive and
negative magnetic switch point;
Built-in dynamic imbalance voltage compensition circuit, high
temperature stability, Small temperature drift in switch point,
resistant to mechanical stress and thermal stress, the power
consumption is only 8μW, when the power supply is 2.75V;.
Products meet the EU RoHS instruction 2011/65 / EU and REACH
regulations 1907/2006 / EU requirements.
AH3661 is a kind of high sensitivity omnipolar micropower Hall
sensor. The special designing circuit enable the sensor has
omnipolar (no “S” or “N” pole) magnetic field excitation function,
excellent positive and negative switch symmetry, and bitty average
power consumption current. When the magnet (no “S” or “N” pole) is
closed to sensor(∣B∣≥∣Bop∣),the sensor outputs low level; when the
magnet is far away from sensor ∣B∣≤∣Brp∣), the sensor outputs high
level. Stable Hysteresis(Bhx =∣Bopx- Brpx∣)ensure the sensor’s
stable switch status, the sensor’s magnetic and electric transfer
characteristic curve is shown as the figure.