AD9218 datasheet(14/29 Pages) AD

14 / 29 page

AD9218

Rev. C | Page 13 of 28

TYPICAL PERFORMANCE CHARACTERISTICS

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–90

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–50

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052.5

ENCODE = 105MSPS

AIN = 50.1MHz AT –0.5dBFS

SNR = 53.8dB

SINAD = 53.4dB

H2 = –69dB

H3 = –65.8dB

Figure 14. FFT: FS = 105 MSPS, AIN = 50.1 MHz @ –0.5 dBFS, Differential,

1 V p-p Input Range

–100

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040

ENCODE = 80MSPS

AIN = 39MHz AT –0.5dBFS

SNR = 56.1dB

SINAD = 55.5dB

H2 = –71.8dB

H3 = –66.2dB

Figure 15. FFT: FS = 80 MSPS, AIN = 39 MHz @ –0.5 dBFS, Differential,

1 V p-p Input Range

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032.5

ENCODE = 65MSPS

AIN = 30.3MHz AT –0.5dBFS

SNR = 56.1dB

SINAD = 55.9dB

SFDR = 72dB

H2 = –83.2dB

H3 = –79dB

Figure 16. FFT: FS = 65 MSPS, AIN = 30.3 MHz @ –0.5 dBFS, Differential,

2 V p-p Input Range

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020

ENCODE = 40MSPS

AIN = 19.75MHz AT –0.5dBFS

SNR = 58.4dB

SINAD = 58.3dB

H2 = –87dB

H3 = –81dB

Figure 17. FFT: FS = 40 MSPS, AIN = 19.75 MHz @ –0.5 dBFS, Differential,

1 V p-p Input Range

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–90

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040

ENCODE = 105MSPS

AIN = 70MHz AT –0.5dBFS

SNR = 51.9dB

SINAD = 51.8dB

H2 = –70.5dB

H3 = –76.3dB

Figure 18. FFT: FS = 105 MSPS AIN = 70 MHz @ –0.5 dBFS, Differential,

1 V p-p Input Range

–100

–90

–80

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–40

–30

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032.5

ENCODE = 65MSPS

AIN = 15MHz AT –0.5dBFS

SNR = 56.4dB

SINAD = 55.9dB

H2 = –73.9dB

H3 = –71.7dB

Figure 19. FFT: FS = 65 MSPS, AIN = 15 MHz @ – 0.5 dBFS; with AD8138 Driving

ADC Inputs, 1 V p-p Input Range

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