AD7982 datasheet(13/24 Pages) AD

部件名	AD7982

功能描述	Precision, Selectable Gain, Fully Differential Funnel Amplifier

PDF	24 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

标志

13 / 24 page

AD8475

Rev. B | Page 13 of 24

50ns/DIV

Figure 35. VOCM Small Signal Step Response, VS = ±2.5 V

–20

–140

–120

–100

–80

–60

–40

0.1

FREQUENCY (MHz)

HD2, G = 0.4

HD3, G = 0.4

HD2, G = 0.8

HD3, G = 0.8

Figure 36. Harmonic Distortion vs. Frequency at Various Gains

–20

–140

–120

–100

–80

–60

–40

0.1

FREQUENCY (MHz)

HD2, RL = 1kΩ

HD3, RL = 1kΩ

HD2, RL = 200Ω

HD3, RL = 200Ω

VOUT = 2V p-p

Figure 37. Harmonic Distortion vs. Frequency at Various Loads

500ns/DIV

Figure 38. VOCM Large Signal Step Response

–20

–140

–120

–100

–80

–60

–40

0.1

FREQUENCY (MHz)

HD2, VS = +5V

HD3, VS = +5V

HD2, VS = ±5V

HD3, VS = ±5V

VOUT = 2V p-p

Figure 39. Harmonic Distortion vs. Frequency at Various Supplies

–20

–140

–120

–100

–80

–60

–40

0.1

FREQUENCY (MHz)

HD2, VOUT = 2V p-p

HD3, VOUT = 2V p-p

HD2, VOUT = 4V p-p

HD3, VOUT = 4V p-p

Figure 40. Harmonic Distortion vs. Frequency at Various VOUT,dm

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