AD9254 datasheet(13/41 Pages) AD

13 / 41 page

AD9254

Rev. 0 | Page 12 of 40

–120

–100

–80

–60

–40

–20

18.75

37.50

56.25

75.00

FREQUENCY (MHz)

150MSPS

fIN1 = 169.1MHz @ –7dBFS

fIN2 = 172.1MHz @ –7dBFS

SFDR = 83dBc (90dBFS)

WoIMD3 = –83dBc (90dBFS)

Figure 24. AD9254 Two-Tone FFT with fIN1 = 169.1 MHz, fIN2 = 172.1 MHz

150

140

130

120

110

100

CLOCK FREQUENCY (MSPS)

SFDR

SNR

Figure 25. AD9254 Single-Tone SNR/SFDR vs. Clock Frequency (fCLK)

with fIN = 2.4 MHz

–20

–40

–60

–80

–100

–120

–90

–78

–66

–54

–42

–30

–18

–6

INPUT AMPLITUDE (dBFS)

SFDR (–dBc)

SFDR (–dBFS)

WORST IMD3 (dBc)

WORST IMD3 (dBFS)

Figure 26. AD9254 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)

with fIN1 = 169.1 MHz, fIN2 = 172.11 MHz

2.0

–1.5

–1.0

–0.5

0.5

1.0

1.5

–2.0

16384

14336

12288

10240

8192

6144

4096

2048

OUTPUT CODE

Figure 27. AD9254 INL with fIN = 10.3 MHz

12000

10000

8000

6000

4000

2000

CODE

N – 5 N – 4 N – 3 N – 2 N – 1

N + 1 N + 2 N + 3 N + 4 N + 5

32768 SAMPLES

1.25 LSB rms

Figure 28. AD9254 Grounded Input Histogram

–0.5

–1.0

–1.5

–2.0

–40

–20

20406080

–2.5

TEMPERATURE (°C)

GAIN ERROR

OFFSET ERROR

Figure 29. AD9254 Gain and Offset vs. Temperature

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