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A1340LKTTN-4-T Datasheet(PDF) 2 Page - Allegro MicroSystems

Part # A1340LKTTN-4-T
Description  High Precision Programmable Linear Hall Effect Sensor IC with EEPROM, Analog Output, and Advanced Output Linearization
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A1340LKTTN-4-T Datasheet(HTML) 2 Page - Allegro MicroSystems

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High Precision Programmable Linear Hall Effect Sensor IC
with EEPROM, Analog Output, and Advanced Output Linearization
A1340
2
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Specifications
3
Absolute Maximum Ratings
3
Thermal Characteristics
3
Functional Block Diagram
4
Pin-out Diagram and Terminal List
4
Electrical Characteristics
5
Magnetic Characteristics
6
Programmable Characteristics
7
Thermal Characteristics
10
Characteristic Performance
11
Functional Description
14
Signal Processing Parameter Setting
14
Digital Signal Processing
14
Bandwidth Selection
14
Temperature Compensation
14
Digital Output Sensitivity (Gain) Adjustment
16
Output Fine Offset Adjustment
16
Linearization of Output
16
Output Polarity
17
Output Signal Clamps Setting
18
Protection Features
18
Typical Application
18
Programming Serial Interface
19
Transaction Types
19
Writing the Access Code
19
Writing to Non-Volatile EEPROM
19
Writing to Volatile Registers
20
Reading from EEPROM
20
Error Checking
20
Serial Interface Reference
21
Serial Interface Message Structure
22
Read
23
Read Acknowledge
24
Write
24
Write Access Code
25
Write Disable Code
25
Write Enable Code
26
EEPROM Structure
27
EEPROM Customer-Programmable Parameter
Reference
29
Definitions of Terms
37
Power-On Time, tPO
37
Respnse TIme, tRESP
37
Quiescent Voltage Output (QVO), VOUT(Q)
37
Sensitivity, Sens
37
Magnetic Offset Drift Through Temperature Range 37
Sensitivity Drift Through Temperature Range
38
Sensitivity Drift Due to Package Hysteresis,
D
SensPKG
38
Linearity Sensitivity Error
38
Ratiometric
38
Package Outline Drawing
40
Selection Guide
Part Number
Packing*
A1340LKTTN-4-T
4000 pieces per 13-in. reel
*Contact Allegro™ for additional packing options
Table of Contents


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