Ratiometric Linear Hall Effect Sensor

for High-Temperature Operation

A1321, A1322,

and

A1323

6

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

Typical Characteristics

(30 pieces, 3 fabrication lots)

Vcc =5 V

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

6

6.5

7

7.5

8

T

Average Positive Linearity (Lin+) vs Temperature

95

96

97

98

99

100

101

102

103

104

105

Average Negative Linearity (Lin–) vs Temperature

95

96

97

98

99

100

101

102

103

104

105

99

99.2

99.4

99.6

99.8

100

100.2

100.4

100.6

100.8

101

4.5 to 5.0 V

5.5 to 5.0 V

Average Ratiometry,

99

99.2

99.4

99.6

99.8

100

100.2

100.4

100.6

100.8

101

4.5 to 5.0V

5.5 to 5.0V

Continued on the next page...