A1340 datasheet(13/42 Pages) ALLEGRO

Part #	A1340

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

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13 / 42 page

High Precision Programmable Linear Hall Effect Sensor IC

with EEPROM, Analog Output, and Advanced Output Linearization

A1340

13

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Ambient Temperature, TA (°C)

-60

-40

-20

0

20

40

60

80

100

140

120

160

0.5

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3

-0.4

-0.5

VCC (V)

4.5

5.5

Average Sensitivity Ratiometry

versus Ambient Temperature

0.5

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3

-0.4

-0.5

Ambient Temperature, TA (°C)

-60

-40

-20

0

20

40

60

80

100

140

120

160

VCC (V)

4.5

5.5

Average Quiescent Voltage Output Ratiometry

versus Ambient Temperature

-60

-40

-20

0

20

40

60

80

100

140

120

160

Ambient Temperature, TA (°C)

2.580

2.560

2.540

2.520

2.500

2.480

2.460

2.440

2.420

Average + 3 sigma

Average – 3 sigma

Average

Factory Programmed Quiescent Voltage Output

versus Ambient Temperature

Change in Ambient Temperature, ∆TA (°C)

0.700

0.500

0.300

0.100

-0.200

-0.300

-0.500

-0.700

-60

-80

-40

-20

0

20

40

60

80

100

140

120

Average + 3 sigma

Average – 3 sigma

Average

Factory Programmed Quiescent Voltage Output

Drift versus Ambient Temperature

Average + 3 sigma

Average – 3 sigma

Average

8.580

8.530

8.480

8.430

8.380

8.330

8.280

8.230

8.180

8.130

8.080

-60

160

-40

-20

0

20

40

60

80

100

140

120

Ambient Temperature, TA (°C)

Factory Programmed Sensitivity

versus Ambient Temperature

Average + 3 sigma

Average – 3 sigma

∆TA relative to TA = 25°C

Average

0.050

0.040

0.030

0.020

0.010

0

-0.010

-0.020

-0.030

-0.040

-0.050

Change in Ambient Temperature, ∆TA (°C)

-60

-80

-40

-20

0

20

40

60

80

100

140

120

Factory Programmed Sensitivity Drift

versus Ambient Temperature

∆TA relative to TA = 25°C

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