AD9625 datasheet(20/74 Pages) AD

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AD9625

Data Sheet

Rev. C | Page 18 of 72

120

100

–90

–80

–70

–60

–50

–40

–30

–20

–10

AMPLITUDE (dBFS)

IMD3 (dBFS)

SFDR (dBFS)

SFDR (dBc)

Figure 16. Two Tone SFDR and IMD3 vs. Analog Input Amplitude at 2.0 GSPS

at 1800 MHz AIN

120

100

–90

–80

–70

–60

–50

–40

–30

–20

–10

AMPLITUDE (dBFS)

IMD3 (dBFS)

SFDR (dBFS)

SFDR (dBc)

Figure 17. Two Tone SFDR and IMD3 vs. Analog Input Amplitude at 2.0 GSPS

at 230 MHz AIN

5.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

N – 4

N – 2

N + 4

N + 2

BINS

Figure 18. Input Referred Noise Histogram with 2.0 GSPS

100

300

500

700

900

1100 1300 1500

1700 1900

ANALOG INPUT FREQUENCY (MHz)

SFDR (dBc)

SNR (dBFS)

+90°C

+25°C

–55°C

Figure 19. SNR/SFDR vs. Analog Input Frequency at Different Temperatures

at 2.0 GSPS

–120

–100

–80

–60

–40

–20

1000

800

600

400

200

FREQUENCY (MHz)

2000MSPS

fIN1 = 1805.5MHz AT –7.0dBFS

fIN2 = 1808.5MHz AT –7.0dBFS

SFDR = 78.117dBc

Figure 20. Two Tone FFT Plot at 2.0 GSPS, fIN1 = 1805.5 MHz and

fIN2 = 1808.5 MHz at AIN, −7.0 dBFS (SFDR = 78.117 dBc)

–120

–100

–80

–60

–40

–20

1000

800

600

400

200

FREQUENCY (MHz)

2000MSPS

fIN1 = 728.5MHz AT –7.0dBFS

fIN2 = 731.5MHz AT –7.0dBFS

SFDR = 80.98dBc

Figure 21. Two Tone FFT Plot at 2.0 GSPS, fIN1 = 728.5 MHz and

fIN2 = 731.5 MHz at AIN, −7.0 dBFS (SFDR = 80.98 dBc)

AD9625 Datasheet(PDF) 20 Page - Analog Devices

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