AD9626 datasheet(16/37 Pages) AD

16 / 37 page

AD9626

Rev. 0 | Page 15 of 36

1.0

–1.0

4096

OUTPUT CODE

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

512

1024

1536

2048

2560

3072

3584

Figure 29. AD9626-210 DNL; 210 MSPS

–140

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

100

120

250MSPS

10.3MHz @ –1.0dBFS

SNR: 64.0dB

ENOB: 10.5 BITS

SFDR: 83dBc

Figure 30. AD9626-250 64k Point Single-Tone FFT; 250 MSPS, 10.3 MHz

–140

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

100

120

250MSPS

70.3MHz @ –1.0dBFS

SNR: 63.8dB

ENOB: 10.6 BITS

SFDR: 80dBc

Figure 31. AD9626-250 64k Point Single-Tone FFT; 250 MSPS, 70.3 MHz

–140

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

100

120

250MSPS

170MHz @ –1.0dBFS

SNR: 62.9dB

ENOB: 10.2 BITS

SFDR: 72dBc

Figure 32. AD9626-250 64k Point Single-Tone FFT; 250 MSPS, 170.3 MHz

35k

N – 4

BIN

30k

25k

20k

15k

10k

N – 3 N – 2 N – 1

N + 1 N + 2 N + 3 N + 4

Figure 33. AD9626-250 Grounded Input Histogram; 250 MSPS

500

ANALOG INPUT FREQUENCY (MHz)

100

150

200

250

300

350

400

450

SFDR (+85°C)

SFDR (+25°C)

SFDR (–40°C)

SNR (+85°C)

SNR (–40°C)

SNR (+25°C)

Figure 34. AD9626-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN) and

Temperature with 1.25 V p-p Full Scale; 250 MSPS

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