2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

0

2

4

6

8

10

12

14

16

18

V

20

Actual

Ideal

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

0

2

4

6

8

10

12

14

16

18

20

22

V

24

INA195, INA198 V

(1)

V

CM2

V

CM3

V

CM4

V

from part to part of the V

maximum V

V

V

NOTE: (1) INA193, INA196 V

INA194, INA197 V

Ideal

V

CM1

INA193A-Q1, INA194A-Q1, INA195A-Q1

INA196A-Q1, INA197A-Q1, INA198A-Q1

(INA195A, INA198A: Gain = 100)

This region of operation is the least accurate for the INA193A–INA198A family. To achieve the wide input

common-mode voltage range, these devices use two op amp front ends in parallel. One op amp front end

operates in the positive input common-mode voltage range, and the other in the negative input region. For this

approaches voltages close to linear operation levels for Normal Case 2. This deviation from linear operation

operation is closer to that described by Normal Case 2. Figure 3 illustrates this behavior for the INA195A. The

(INA195A, INA198A: Gain = 100)

10

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Product Folder Link(s): INA193A-Q1 INA194A-Q1 INA195A-Q1 INA196A-Q1 INA197A-Q1 INA198A-Q1