AD9625 datasheet(22/74 Pages) AD

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AD9625

Data Sheet

Rev. C | Page 20 of 72

AD9625-2.5

For the AD9625-2.5 model, full-scale range used is 1.2 V.

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FREQUENCY (MHz)

2500MSPS

1816.7MHz AT –1.0dBFS

SNR = 57.1dBFS

SFDR = 80.35dBc

Figure 25. FFT Plot at 2.5 GSPS, fIN = 1816.7 MHz at AIN (SFDR = 80.35 dBc,

SNR = 57.1 dBFS)

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FREQUENCY (MHz)

2500MSPS

730.3MHz AT –1.0dBFS

SNR = 57.8dBFS

SFDR = 77.1dBc

Figure 26. FFT Plot at 2.5 GSPS, fIN = 730.3 MHz at AIN (SFDR = 77.1 dBc,

SNR = 57.8 dBFS)

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FREQUENCY (MHz)

2500MSPS

115.05MHz AT –1.0dBFS

SNR = 58.1dBFS

SFDR = 78.4dBc

Figure 27. FFT Plot at 2.5 GSPS, fIN = 115.05 MHz at AIN (SFDR = 78.4 dBc,

SNR = 58.1 dBFS)

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FREQUENCY (MHz)

2500MSPS

2990.11MHz AT –1.0dBFS

SNR = 55.3dBFS

SFDR = 70.6dBc

Figure 28. FFT Plot at 2.5 GSPS, fIN = 2990.11 MHz at AIN (SFDR = 70.6 dBc,

SNR = 55.3 dBFS) (Input Network in Figure 75 Used)

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INPUT FREQUENCY (MHz)

Figure 29. Noise Specrtal Density (NSD) vs. AIN at 2.5 GSPS (Input Network in

Figure 76 Used <2 GHz, Input Network in Figure 75 Used >2 GHz)

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AMPLITUDE (dB)

SFDR (dBFS)

SNR (dBFS)

SFDR (dBc)

SNR (dB)

Figure 30. SNR/SFDR vs. Analog Input Amplitude at 2.5 GSPS, fIN = 241 MHz

at AIN

AD9625 Datasheet(PDF) 22 Page - Analog Devices

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