General Description

Using low power CMOS process, the AS1833AOD
is designed for low power, high performance omnipolar
detection hall-effect application, such as cover switch, contact less switch, solid state switch and lid close
sensor etc battery operation. The hall IC integrated an
on-chip hall voltage generator for magnetic sensing, a
comparator that amplifiers the hall voltage, a Chopper
amplifier, a Schmitt trigger to provide switching
hysteresis for noise rejection, and a complementary
output. The total power consumption of AS1833AOD is
typically less than 3uA at 2.8V power supply. AS1833AOD is designed to respond to alternating
North and South poles. When the magnetic flux density
(B) is larger than operate point (BOP), the output will be
turned on (low), the output is held until the magnetic
flux density (B) is lower than release point (BRP), then
turn off (high). The device is available in SOT23-3L & SIP-3L
Package is rated over the -40°C to 125°C.

Features

 Input Voltage Range: 2.4V to 5.5V
 Micro-power consumption ideal for battery
power applications
 Omnipolar Operation, easy to use as output
 Sensitivity hall sensor
 Low Power CMOS process technology
 Chopper stabilization amplifier stage
 Magnetic Sensitivity (typical)
BOP=±18Gauss, BRP=±10Gauss
 Good RF noise immunity
 RoHS & Green Compliant
 SOT23-3L & SIP-3L Packages
 -40℃ to +125 ℃ Temperature Range

Applications

 Smart Meter
 Cover switch
 Contact-less switch