AD6684 datasheet(15/107 Pages) AD

15 / 107 page

Data Sheet

AD6684

Rev. 0 | Page 15 of 107

SAMPLE RATE (MHz)

SFDR

SNR

Figure 12. SNR/SFDR vs. Sample Rate (fS), fIN = 155 MHz

ANALOG INPUT FREQUENCY (MHz)

SFDR (dBFS), –40°C

SFDR (dBFS), +105°C

SFDR (dBFS), +50°C

SNRFS, –40°C

SNRFS, +105°C

SNRFS, +50°C

Figure 13. SNR/SFDR vs. Analog Input Frequency (fIN)

66.0

66.1

66.2

66.3

ANALOG INPUT FREQUENCY (MHz)

66.4

66.5

66.6

66.7

66.8

66.9

67.0

67.1

67.2

67.3

67.4

67.5

Figure 14. SNR vs. Analog Input Frequency (fIN), First and Second Nyquist

Zones; AIN at −3 dBFS

ANALOG INPUT FREQUENCY (MHz)

Figure 15. SFDR vs. Analog Input Frequency (fIN), First and Second Nyquist

Zones; AIN at −3 dBFS

66.0

ANALOG INPUT FREQUENCY (MHz)

66.5

67.0

67.5

Figure 16. SNR vs. Analog Input Frequency (fIN), Third Nyquist Zone

AIN at −3 dBFS

ANALOG INPUT FREQUENCY (MHz)

Figure 17. SFDR vs. Analog Input Frequency (fIN), Third Nyquist Zone; AIN

at −3 dBFS

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