A3425
Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch
Functional Block Diagram
VCC
Programmable
Trim
Regulator
8 Bits
4 Bits
OUTPUTA
Low-
Pass
Filter
Output
Drive
Amp
4 Bits
OUTPUTB
Low-
Pass
Filter
Output
Drive
Amp
GND
Terminal List
Package
Symbol
Description
K
1
2
3
4
–
L
1
2
3
4
VCC
OUTPUTA
OUTPUTB
GND
Connects power supply to on-chip voltage regulator
Output from first Schmitt circuit
Output from second Schmitt circuit
Ground
–
No connection
5, 6, 7, 8
Allegro MicroSystems, Inc.
2
115 Northeast Cutoff, Box 15036
A3425DS-Rev. !
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com