AD8274

Rev. A | Page 13 of 13

CONFIGURATIONS

The AD8274 can be configured in several ways; see Figure 40 to Figure 47. Because these configurations rely on the internal, matched

resistors, all of these configurations have excellent gain accuracy and gain drift. Note that the AD8274 internal op amp is stable for noise

gains of 1.5 and higher, so the AD8274 should not be placed in a unity-gain follower configuration.

12kΩ

2

3

5

1

6

6kΩ

12kΩ

6kΩ

–IN

OUT

+IN

Figure 40. Difference Amplifier, G = ½

6kΩ

3

2

1

6

12kΩ

6kΩ

12kΩ

–IN

OUT

+IN

5

Figure 41. Difference Amplifier, G = 2

12kΩ

2

3

5

1

6

6kΩ

12kΩ

6kΩ

–IN

OUT

Figure 42. Inverting Amplifier, G = −½

6kΩ

2

1

5

3

6

12kΩ

6kΩ

12kΩ

–IN

OUT

Figure 43. Inverting Amplifier, G = −2

12kΩ

2

3

5

1

6

6kΩ

12kΩ

6kΩ

OUT

+IN

Figure 44. Noninverting Amplifier, G = ½

6kΩ

2

3

5

1

6

12kΩ

6kΩ

12kΩ

OUT

+IN

Figure 45. Noninverting Amplifier, G = 2

12kΩ

25

6

6kΩ

+IN

OUT

3

1

12kΩ

6kΩ

Figure 46. Noninverting Amplifier, G = 1.5

6kΩ

2

5

6

12kΩ

+IN

OUT

3

1

6kΩ

12kΩ

Figure 47. Noninverting Amplifier, G = 3