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Continuous-Time Ratiometric 

Linear Hall Effect Sensors 

A1301 

and

 

A1302 

8

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036  (508) 853-5000
www.allegromicro.com

 

The products described herein are manufactured under one or more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 

5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents pending.
 

Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail spec i fi ca tions as may be required 

to permit improvements in the per for mance, reliability, or manufacturability of its products.  Before placing an order, the user is cautioned to verify 
that the information being relied upon is current.  
 

Allegro products are not authorized for use as critical components in life-support devices or sys tems without express written approval.  

 

The in for ma tion in clud ed herein is believed to be ac cu rate and reliable.  How ev er, Allegro MicroSystems, Inc. assumes  no  re spon si bil i ty  for 

its use; nor for any in fringe ment of patents or other rights of third parties which may result from its use.
     Copyright © 2005, 2006 Allegro MicroSystems, Inc.

Package UA, 3-Pin SIP

B

D

D

D

.164
.159

4.17
4.04

.122
.117

3.10
2.97

.062
.058

1.57
1.47

.017
.014

0.44
0.35

.019
.014

0.48
0.36

  .640
  .600

16.26
15.24

.085
MAX

2.16

.050
NOM

1.27

.031
REF

0.79

.0805
NOM

2.04

1.44

.0565
NOM

Dimensions in inches
Metric dimensions (mm) in brackets, for reference only

2

3

1

A

A

B

C

C

Dambar removal protrusion (6X)

Active Area Depth .0195 [0.50] NOM 

D

Hall element (not to scale)

Ejector mark on opposite side 

Summary of Contents for A1301

Page 1: ...ents made at end of line during the manufacturing process These features make the A1301 and A1302 ideal for use in position sensing systems for both linear target motion and rotational target motion They are well suited for industrial applications over extended temperature ranges from 40 C to 125 C Two device package types are available LH a 3 pin SOT23W type for surface mount and UA a 3 pin ultra...

Page 2: ...s 7 in tape and reel 3000 pieces reel Surface Mount 40ºC to 125ºC A1302KUA T Yes Bulk 500 pieces bag SIP 1Pb based variants are being phased out of the product line Certain variants cited in this footnote are no longer in production The variants should not be purchased for new design applications Samples are no longer available Status change May 1 2006 These variants include A1301ELHLT A1301EUA A1...

Page 3: ...V μs to 4 5 V 100 ns 3 5 μs Output Resistance ROUT ISINK 1 mA ISOURCE 1 mA 2 5 Ω Wide Band Output Noise rms VOUTN External output low pass filter 10 kHz Sens nominal 150 μV Ratiometry Quiescent Output Voltage Error with respect to ΔVCC 1 ΔVOUTQ V TA 25 C 3 0 Magnetic Sensitivity Error with respect to ΔVCC 2 ΔSens V TA 25 C 3 0 Output Linearity Lin TA 25 C 2 5 Symmetry Sym TA 25 C 3 0 Magnetic Char...

Page 4: ...ely the application of a north polarity B magnetic field in the same orientation proportionally decreases the output voltage from its quiescent value This proportionality is specified as the magnetic sensitivity of the device and is defined as The stability of the device magnetic sensitivity as a function of ambient temperature ΔSens ΔTA is defined as Ratiometric The A1301 and A1302 feature a rati...

Page 5: ...0 25 50 75 100 125 150 2 40 2 45 2 50 2 55 2 60 50 25 0 25 50 75 100 125 150 4 5 5 0 5 5 6 0 4 5 5 0 5 5 6 0 LH Package UA Package LH Package UA Package 1301 Device Sensitivity vs Ambient Temperature 1302 Device Sensitivity vs Temperature Temperature C Temperature C 1301 Device VOUTQ vs Ambient Temperature 1302 Device VOUTQ vs Ambient Temperature 1301 Device Sensitivity vs Supply Voltage 1302 Devi...

Page 6: ...99 4 99 5 99 6 99 7 99 8 99 9 100 0 4 5 5 0 5 5 6 0 99 5 99 6 99 7 99 8 99 9 100 0 100 1 100 2 100 3 100 4 100 5 4 5 5 0 5 5 6 0 Supply Voltage V LIN LIN LIN LIN 99 6 99 7 99 8 99 9 100 0 99 8 99 9 100 0 100 1 100 2 100 3 100 4 1302 Device VOUTQ vs Supply Voltage 1301 Device Symmetry vs Supply Voltage 1302 Device Symmetry vs Supply Voltage 1301 Device LIN and LIN vs Supply Voltage 1302 Device LIN ...

Page 7: ...0 075 0 25 010 3 04 2 80 120 110 2 1 3 GAUGE PLANE SEATING PLANE B A B Preliminary dimensions for reference only Dimensions in millimeters U S Customary dimensions in in brackets for reference only reference JEDEC TO 236 AB except case width and terminal tip to tip Dimensions exclusive of mold flash gate burrs and dambar protrusions Exact case and lead configuration at supplier discretion within l...

Page 8: ... is cautioned to verify that the information being relied upon is current Allegro products are not authorized for use as critical components in life support devices or systems without express written approval The information included herein is believed to be accurate and reliable However Allegro MicroSystems Inc assumes no responsibility for its use nor for any infringement of patents or other rig...

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