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recoverability after temperature cycling. Having the Hall element
and an amplifier on a single chip minimizes many problems normally
associated with low-level analog signals.
Output precision is obtained by internal gain and offset trim adjustments
made at end-of-line during the manufacturing process.
The A132X family is provided in a 3-pin single in-line package
(UA) and a 3-pin surface mount package (LH). Each package is
available in a lead (Pb) free version (suffix, –T) , with a 100% matte
tin plated leadframe.
Description (continued)
Ratiometric Linear Hall Effect Sensor
for High-Temperature Operation
A1321, A1322,
and A1323
2
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Selection Guide
Part Number Packing* Mounting
Ambient, T
A
(ºC)
Sensitivity,
Typ. (mV/G)
A1321ELHLT-T 7-in. reel, 3000 pieces/reel Surface Mount
–40 to 85
5.000
A1321EUA-T Bulk, 500 pieces/bag SIP through hole
A1321LLHLT-T 7-in. reel, 3000 pieces/reel Surface Mount
–40 to 150
A1321LUA-T Bulk, 500 pieces/bag SIP through hole
A1322ELHLT-T 7-in. reel, 3000 pieces/reel Surface Mount
–40 to 85
3.125
A1322EUA-T Bulk, 500 pieces/bag SIP through hole
A1322LLHLT-T 7-in. reel, 3000 pieces/reel Surface Mount
–40 to 150
A1322LUA-T Bulk, 500 pieces/bag SIP through hole
A1323ELHLT-T 7-in. reel, 3000 pieces/reel Surface Mount
–40 to 85
2.500
A1323EUA-T Bulk, 500 pieces/bag SIP through hole
A1323LLHLT-T 7-in. reel, 3000 pieces/reel Surface Mount
–40 to 150
A1323LUA-T Bulk, 500 pieces/bag SIP through hole
*Contact Allegro for additional packing options.
Absolute Maximum Ratings
Characteristic Symbol Notes Rating Units
Supply Voltage V
CC
*
Additional current draw may be observed at
voltages above the minimum supply Zener
clamp voltage, V
Z(min)
, due to the Zener diode
turning on.
8V
Output Voltage V
OUT
8V
Reverse Supply Voltage V
RCC
–0.1 V
Reverse Supply Voltage V
RCC
–0.1 V
Output Sink Current I
OUT
10 mA
Operating Ambient Temperature T
A
Range E –40 to 85 ºC
Range L –40 to 150 ºC
Maximum Junction Temperature T
J
(max) 165 ºC
Storage Temperature T
stg
–65 to 170 ºC