AD9255 datasheet(17/45 Pages) AD

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AD9255

Data Sheet

Rev. C | Page 16 of 44

120

110

100

–100

–80

–90

–70

–60

–50

–40

–30

–20

–10

INPUT AMPLITUDE (dBFS)

SFDRFS (DITHER ON)

SFDRFS (DITHER OFF)

SNRFS (DITHER ON)

SNRFS (DITHER OFF)

Figure 12. AD9255-80 Single-Tone SNR/SFDR vs. Input Amplitude (AIN) with

fIN = 30 MHz with and without Dither Enabled

100

150

200

250

300

INPUT FREQUENCY (MHz)

SNR @ –40°C

SNR @ +25°C

SNR @ +85°C

SFDR @ –40°C

SFDR @ +25°C

SFDR @ +85°C

Figure 13. AD9255-80 Single-Tone SNR/SFDR vs.

Input Frequency (fIN) and Temperature with 2 V p-p Full Scale

105

100

SAMPLE RATE (MSPS)

SFDR

SNR

Figure 14. AD9255-80 Single-Tone SNR/SFDR vs. Sample Rate (fS)

with fIN = 70.1 MHz

1.6M

1.4M

1.2M

1.0M

800k

600k

400k

200k

OUTPUT CODE

N – 3

N – 2

N – 1

N + 1

N + 2

N + 3

0.62 LSB RMS

Figure 15. AD9255-80 Grounded Input Histogram

16,000

14,000

12,000

10,000

8000

6000

4000

2000

1.0

–1.0

–0.8

–0.6

–0.4

–0.2

0.2

0.4

0.6

0.8

OUTPUT CODE

INL WITHOUT DITHER

INL WITH DITHER

Figure 16. AD9255-80 INL with fIN = 12.5 MHz

0.50

–0.50

–0.25

0.25

OUTPUT CODE

16,000

14,000

12,000

10,000

8000

6000

4000

2000

Figure 17. AD9255-80 DNL with fIN = 12.5 MHz

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