A1321, A1322,
and A1323
Ratiometric Linear Hall Effect Sensor ICs
for High-Temperature Operation
Description (continued)
recoverability after temperature cycling. Having the Hall element The A132X family is provided in a 3-pin single in-line package
andanamplifieronasinglechipminimizesmanyproblemsnormally (UA) and a 3-pin surface mount package (LH). Each package is
associated with low-level analog signals.
available in a lead (Pb) free version (suffix, –T) , with a 100% matte
tin plated leadframe.
Outputprecisionisobtainedbyinternalgainandoffsettrimadjustments
made at end-of-line during the manufacturing process.
Selection Guide
Ambient, TA
(ºC)
Sensitivity,
Typ. (mV/G)
Part Number
Packing1
Mounting
A1321ELHLT-T2
A1321EUA-T3
A1321LLHLT-T2
A1321LUA-T3
A1322LLHLT-T2
A1322LUA-T3
A1323EUA-T3
A1323LLHLT-T2
A1323LUA-T3
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
Surface Mount
SIP through hole
Surface Mount
SIP through hole
Surface Mount
SIP through hole
SIP through hole
Surface Mount
SIP through hole
–40 to 85
5.000
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
–40 to 150
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
–40 to 150
–40 to 85
–40 to 150
3.125
2.500
Bulk, 500 pieces/bag
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
1Contact Allegro for additional packing options.
2This variant is in production, however, it has been deemed Pre-End of Life. The product is approaching end of life. Within a minimum of 6 months,
the device will enter its final, Last Time Buy, order phase. Status change: January 31, 2011. Suggested replacements: for the A1321ELHLT-T and
the A1321LLHLT-T use the A1324LLHLX-T, for the A1322LLHLT-T use the A1325LLHLX-T, and for the A1323LLHLT-T use the A1326LLHLX-T.
3Variant is in production but has been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of the variant is currently
restricted to existing customer applications. The variant should not be purchased for new design applications because obsolescence in the near
future is probable. Samples are no longer available. Status change: January 31, 2011.
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating
Units
*Additional current draw may be observed at
voltages above the minimum supply Zener
clamp voltage, VZ(min), due to the Zener diode
turning on.
Supply Voltage
VCC
8
V
Output Voltage
VOUT
VRCC
VROUT
IOUT
8
–0.1
V
V
Reverse Supply Voltage
Reverse Output Voltage
Output Sink Current
–0.1
V
10
mA
ºC
ºC
ºC
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
TA
Range L
–40 to 150
165
TJ(max)
Tstg
–65 to 170
Allegro MicroSystems, Inc.
115 Northeast Cutoff
2
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com