A1321 datasheet(3/13 Pages) ALLEGRO

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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.

Outputprecisionisobtainedbyinternalgainandoffsettrimadjustments

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 ICs

for High-Temperature Operation

A1321, A1322,

and

A1323

Allegro MicroSystems, Inc.

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Selection Guide

Part Number

Packing1

Mounting

Ambient, TA

(ºC)

Sensitivity,

Typ. (mV/G)

A1321ELHLT-T2

7-in. reel, 3000 pieces/reel

Surface Mount

–40 to 85

5.000

A1321EUA-T3

Bulk, 500 pieces/bag

SIP through hole

A1321LLHLT-T2

7-in. reel, 3000 pieces/reel

Surface Mount

–40 to 150

A1321LUA-T3

Bulk, 500 pieces/bag

SIP through hole

A1322LLHLT-T2

7-in. reel, 3000 pieces/reel

Surface Mount

–40 to 150

3.125

A1322LUA-T3

Bulk, 500 pieces/bag

SIP through hole

A1323EUA-T3

Bulk, 500 pieces/bag

SIP through hole

–40 to 85

2.500

A1323LLHLT-T2

7-in. reel, 3000 pieces/reel

Surface Mount

–40 to 150

A1323LUA-T3

Bulk, 500 pieces/bag

SIP through hole

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

Supply Voltage

VCC

*Additional current draw may be observed at

voltages above the minimum supply Zener

clamp voltage, VZ(min), due to the Zener diode

turning on.

Output Voltage

VOUT

Reverse Supply Voltage

VRCC

–0.1

Reverse Output Voltage

VROUT

–0.1

Output Sink Current

IOUT

Operating Ambient Temperature

Range L

–40 to 150

ºC

Maximum Junction Temperature

TJ(max)

165

ºC

Storage Temperature

Tstg

–65 to 170

ºC

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