ADA4950-2YCPZ-R7 datasheet(11/26 Pages) AD

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Data Sheet

ADA4950-1/ADA4950-2

Rev. B | Page 11 of 26

–0.5

–0.4

–0.3

–0.2

–0.1

0.1

0.2

0.3

0.4

0.5

100

1000

VOUT, dm = 100mV p-p

FREQUENCY (MHz)

ADA4950-1, RL = 1kΩ

ADA4950-1, RL = 200Ω

ADA4950-2, AMP 1, RL = 1kΩ

ADA4950-2, AMP 1, RL = 200Ω

ADA4950-2, AMP 2, RL = 1kΩ

ADA4950-2, AMP 2, RL = 200Ω

Figure 19. 0.1 dB Flatness, Small-Signal Frequency Response for Various Loads

–8

–7

–6

–5

–4

–3

–2

–1

100

FREQUENCY (MHz)

1000

VOCM (AC) = 100mV p-p

VOCM = –2.5VDC

VOCM = 0V

VOCM = +2.5VDC

Figure 20. VOCM Small-Signal Frequency Response at Various DC Levels

–140

–130

–120

–110

–100

–90

–80

–70

–60

–50

–40

FREQUENCY (MHz)

HD2, RL, dm = 1kΩ

HD3, RL, dm = 1kΩ

HD2, RL, dm = 200Ω

HD3, RL, dm = 200Ω

VOUT, dm = 2V p-p

0.1

100

Figure 21. Harmonic Distortion vs. Frequency at Various Loads

–0.5

–0.4

–0.3

–0.2

–0.1

0.1

0.2

0.3

0.4

0.5

100

1000

ADA4950-1, RL = 1kΩ

ADA4950-1, RL = 200Ω

ADA4950-2, AMP 1, RL = 1kΩ

ADA4950-2, AMP 1, RL = 200Ω

ADA4950-2, AMP 2, RL = 1kΩ

ADA4950-2, AMP 2, RL = 200Ω

VOUT, dm = 2V p-p

FREQUENCY (MHz)

Figure 22. 0.1 dB Flatness, Large-Signal Frequency Response for Various Loads

–8

–7

–6

–5

–4

–3

–2

–1

100

1000

VOCM (AC) = 2V p-p

VOCM = –2.5VDC

VOCM = 0V

VOCM = +2.5VDC

FREQUENCY (MHz)

Figure 23. VOCM Large-Signal Frequency Response at Various DC Levels

–140

–130

–120

–110

–100

–90

–80

–70

–60

–50

–40

FREQUENCY (MHz)

VOUT, dm = 2V p-p

0.1

100

HD2, G = 1

HD3, G = 1

HD2, G = 2

HD3, G = 2

HD2, G = 3

HD3, G = 3

Figure 24. Harmonic Distortion vs. Frequency at Various Gains

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