AD8047/AD8048

REV. 0

–7–

–90

–110

–70

–50

–30

FREQUENCY – Hz

100M

1M

100k

10k

–40

–20

–60

–80

–100

–120

10M

2ND HARMONIC

3RD HARMONIC

Figure 21. AD8047 Harmonic Distortion vs. Frequency,

G = +1

OUTPUT SWING – V p-p

–25

–30

–65

1.6

6.5

2.5

3.5

4.5

5.5

–45

–50

–55

–60

–35

–40

2ND HARMONIC

3RD HARMONIC

f = 20MHz

Figure 22. AD8047 Harmonic Distortion vs. Output Swing,

G = +1

0.04

–0.04

0.00

–0.02

0.02

11th

1st

2nd

3rd

4th

5th

6th

7th

8th

9th

10th

11th

1st

2nd

3rd

4th

5th

6th

7th

8th

9th

10th

0.04

–0.04

0.00

–0.02

0.02

Figure 23. AD8047 Differential Gain and Phase Error,

Ω, R

Ω, R

Ω

SETTLING TIME – ns

0.5

0.4

–0.4

010

20

0.0

–0.1

–0.2

–0.3

0.2

0.1

0.3

–0.5

515

25

35

45

30

40

Figure 24. AD8047 Short-Term Settling Time, G = +1

SETTLING TIME – µs

0.25

0.20

–0.20

04

8

0.00

–0.05

–0.10

–0.15

0.10

0.05

0.15

–0.25

2

6

10

14

18

12

16

Figure 25. AD8047 Long-Term Settling Time, G = +1

17

13

3

100

100k

10k

1k

10

15

9

11

5

7

FREQUENCY – Hz

Figure 26. AD8047 Noise vs. Frequency