A1140/41/42/43
Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
Functional Block Diagram
V+
VCC
Program/Lock
Programming
Logic
Offset
Regulator
Clock/Logic
0.01 uF
Sample and Hold
Dynamic Offset
Cancellation
Low-Pass
Filter
Amp
GND
Package UA Only
GND
Product Selection Guide
Use the complete part numbers when ordering
Supply Current at
Low Output, I
CC(L)
(mA)
Output
South
(+) Field
1
Other
Field
2
Part Number
A1140ELH
A1140EUA
A1140LLH
A1140LUA
A1141ELH
A1141EUA
A1141LLH
A1141LUA
A1142ELH
A1142EUA
A1142LLH
A1142LUA
A1143ELH
A1143EUA
A1143LLH
A1143LUA
1
South
Package
Surface Mount
SIP
Surface Mount
SIP
Surface Mount
SIP
Surface Mount
SIP
Surface Mount
SIP
Surface Mount
SIP
Surface Mount
SIP
Surface Mount
SIP
T
A
(ºC)
–40 to 85
2 to 5
–40 to 150
–40 to 85
2 to 5
–40 to 150
–40 to 85
5 to 6.9
–40 to 150
–40 to 85
5 to 6.9
–40 to 150
Low
High
High
Low
Low
High
High
Low
(+) magnetic
fi
elds must be of sufficient strength.
2
Includes north (–) magnetic
fi
elds of sufficient strength, and weak
fi
elds of either polarity.
A1140-DS
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
2
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
