A3425
Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch
Typical Applications Operation
V+
VOUTPUT(OFF)
VOUTPUT(ON)(sat)
B+
BHYS
Output voltage in relation to sensed magnetic flux density. Output on
each channel independently follows the same pattern of transition
through BOP followed by transition through BRP
.
Magnetic Field
Sensor A
Magnetic Field
Sensor B
Output Sensor A
Output Sensor B
Quadrature output signal configuration. The outputs of the two output
channels have a phase difference of 90º when used with a properly
designed magnet that has an optimal pole pitch of twice the Hall ele-
ment spacing of 1.0 mm.
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
8
A3425DS-Rev. !
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
