AD9628 datasheet(23/43 Pages) AD

23 / 43 page

AD9628

Data Sheet

Rev. C | Page 22 of 42

AD9628-105

AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, and DCS enabled, unless

otherwise noted.

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FREQUENCY (MHz)

105MSPS

9.7MHz AT –1dBFS

SNR = 70.8dB (71.8dBFS)

SFDR = 94dBc

Figure 23. Single-Tone FFT with fIN = 9.7 MHz

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FREQUENCY (MHz)

105MSPS

30.5MHz AT –1dBFS

SNR = 70.7dB (71.7dBFS)

SFDR = 90.6dBc

Figure 24. Single-Tone FFT with fIN = 30.5 MHz

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FREQUENCY (MHz)

105MSPS

70.1MHz AT –1dBFS

SNR = 70.3dB (71.3dBFS)

SFDR = 95dBc

Figure 25. Single-Tone FFT with fIN = 70.1 MHz

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FREQUENCY (MHz)

105MSPS

100.5MHz AT –1dBFS

SNR = 70.2dB (71.2dBFS)

SFDR = 90.6dBc

Figure 26. Single-Tone FFT with fIN = 100.5 MHz

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FREQUENCY (MHz)

105MSPS

200.5MHz AT –1dBFS

SNR = 68.7dB (69.7dBFS)

SFDR = 81dBc

Figure 27. Single-Tone FFT with fIN = 200.5 MHz

100

150

200

250

ANALOG INPUT FREQUENCY (MHz)

SFDR AT 25°C

SNRFS AT 25°C

Figure 28. SNR/SFDR vs. Input Frequency (AIN) with 2 V p-p Full Scale

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