AD9271 datasheet(17/61 Pages) AD

номер детали	AD9271

подробное описание детали	Octal LNA/VGA/AAF/ADC and Crosspoint Switch

PDF	61 Pages

Scroll/Zoom	100%

производитель	AD [Analog Devices]

домашняя страница	http://www.analog.com

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17 / 61 page

AD9271

Rev. B | Page 16 of

–2.0

VGAIN (V)

TYPICAL PERFORMANCE CHARACTERISTICS

fSAMPLE = 50 MSPS, fIN = 5 MHz, LPF = 1/3 × fSAMPLE, HPF = 700 kHz, LNA gain = 6×.

2.0

1.0

1.5

–1.0

–0.5

0.5

–1.5

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

+85°C

+25°C

–40°C

Figure 18. Gain Error vs. VGAIN at Three Temperatures

–1.0

–0.6

GAIN ERROR (dB)

–0.8

–0.4

–0.2

0.4

0.2

0.6

0.8

1.0

SAMPLE SIZE = 720 CHANNELS

Figure 19. Gain Error Histogram with VGAIN = 0.1 V

GAIN ERROR (dB)

SAMPLE SIZE = 720 CHANNELS

Figure 20. Gain Error Histogram with VGAIN = 0.5 V

–1.0

–0.6

GAIN ERROR (dB)

–0.8

–0.4

–0.2

0.4

0.2

0.6

0.8

1.0

SAMPLE SIZE = 720 CHANNELS

Figure 21. Gain Error Histogram with VGAIN = 0.9 V

CHANNEL-TO-CHANNEL GAIN MATCHING (dB)

–1.25 –1.00 –0.75 –0.50 –0.25

0.25

0.50

0.75

1.00

1.25

Figure 22. Gain Match Histogram for VGAIN = 0.2 V

CHANNEL-TO-CHANNEL GAIN MATCHING (dB)

–1.25 –1.00 –0.75 –0.50 –0.25

0.25

0.50

0.75

1.00

1.25

Figure 23. Gain Match Histogram for VGAIN = 0.8 V

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