
A1321, A1322, and A1323
Ratiometric Linear Hall Effect Sensor for 
Description (continued)
recoverability after temperature cycling. Having the Hall element and an amplifier on a single chip minimizes many problems normally associated with 
Outputprecisionisobtainedbyinternalgainandoffsettrimadjustments made at 
The A132X family is provided in a 
(UA) and a 
available in a lead (Pb) free version (suffix, 
tin plated leadframe.
Selection Guide
| Part Number | Packing* | Mounting | Ambient, TA | Sensitivity, | |
| 
 | 
 | 
 | (ºC) | Typ. (mV/G) | |
| 
 | Surface Mount | 
 | |||
| Bulk, 500 pieces/bag | SIP through hole | 5.000 | |||
| 
 | |||||
| 
 | Surface Mount | ||||
| 
 | |||||
| Bulk, 500 pieces/bag | SIP through hole | 
 | |||
| 
 | 
 | ||||
| 
 | Surface Mount | 
 | |||
| Bulk, 500 pieces/bag | SIP through hole | 3.125 | |||
| 
 | |||||
| 
 | Surface Mount | ||||
| 
 | |||||
| Bulk, 500 pieces/bag | SIP through hole | 
 | |||
| 
 | 
 | ||||
| 
 | Surface Mount | 
 | |||
| Bulk, 500 pieces/bag | SIP through hole | 2.500 | |||
| 
 | |||||
| 
 | Surface Mount | ||||
| 
 | |||||
| Bulk, 500 pieces/bag | SIP through hole | 
 | |||
| 
 | 
 | 
*Contact Allegro for additional packing options.
Absolute Maximum Ratings
| Characteristic | Symbol | Notes | Rating | 
 | Units | 
 | 
| 
 | 
 | *Additional current draw may be observed at | 
 | 
 | 
 | 
 | 
| Supply Voltage | VCC | voltages above the minimum supply Zener | 8 | 
 | V | 
 | 
| clamp voltage, VZ(min), due to the Zener diode | 
 | 
 | ||||
| 
 | 
 | turning on. | 
 | 
 | 
 | 
 | 
| Output Voltage | VOUT | 
 | 8 | 
 | V | 
 | 
| Reverse Supply Voltage | VRCC | 
 | 
 | V | 
 | |
| Reverse Supply Voltage | VRCC | 
 | 
 | V | 
 | |
| Output Sink Current | IOUT | 
 | 10 | 
 | mA | 
 | 
| Operating Ambient Temperature | TA | Range E | 
 | ºC | 
 | |
| 
 | 
 | 
 | 
 | 
 | ||
| Range L | 
 | ºC | 
 | |||
| 
 | 
 | 
 | 
 | |||
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| Maximum Junction Temperature | TJ(max) | 
 | 165 | 
 | ºC | 
 | 
| Storage Temperature | Tstg | 
 | 
 | ºC | 
 | |
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| 
 | 
 | 
 | Allegro MicroSystems, Inc. | 2 | ||
115 Northeast Cutoff
Worcester, Massachusetts 
