AD7944 datasheet(13/28 Pages) AD

13 / 28 page

ADA4896-2/ADA4897-1

Rev. 0 | Page 13 of 28

–3

–2

–1

0.1

100

FREQUENCY (MHz)

VS = +5V

G = +2

RL = 100Ω

VOUT = 20mV p-p

CL = 0pF

CL = 20pF

CL = 39pF

Figure 14. Small Signal Frequency Response vs. Capacitive Load

–50

FREQUENCY (MHz)

0.1

–60

–70

–90

–80

–100

–110

–120

RL = 100Ω, THIRD

RL = 1kΩ, SECOND

RL = 1kΩ, THIRD

RL = 100Ω, SECOND

VS = +5V

VOUT = 2V p-p

G = +1

Figure 15. Harmonic Distortion vs. Frequency, G = +1

–110

–100

–90

–80

–70

–60

–50

–40

0.1

FREQUENCY (MHz)

VS = +5V

VOUT = 2V p-p

G = +5

RL = 1kΩ, SECOND

RL = 1kΩ, THIRD

RL = 100Ω, THIRD

RL = 100Ω, SECOND

Figure 16. Harmonic Distortion vs. Frequency, G = +5

–100

–90

–80

–70

–60

–50

–40

–30

0.1

FREQUENCY (MHz)

VS = +5V

VOUT = 2V p-p

G = +10

RL = 100Ω, THIRD

RL = 1kΩ, THIRD

RL = 100Ω, SECOND

RL = 1kΩ, SECOND

Figure 17. Harmonic Distortion vs. Frequency, G = +10

–50

FREQUENCY (MHz)

0.1

–60

–70

–80

–90

–100

–110

–120

8V p-p THIRD

8V p-p SECOND

4V p-p SECOND

4V p-p THIRD

2V p-p SECOND

2V p-p THIRD

VS = ±5V

G = +1

RL = 1kΩ

Figure 18. Harmonic Distortion vs. Frequency for Various Output Voltages

0.1

–130

–120

–110

–100

–90

–80

–70

–60

–50

G = +2

FREQUENCY (MHz)

VS = +3V,

SECOND

VS = +3V,

THIRD

VS = ±5V,

THIRD

VS = +5V,

SECOND

VS = +5V,

THIRD

VS = ±5V,

SECOND

Figure 19. Harmonic Distortion vs. Frequency for Various Supplies

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