AD9239 datasheet(16/41 Pages) AD

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Data Sheet

AD9239

0.5

0.4

0.3

0.2

0.1

–0.1

–0.2

–0.3

–0.4

–0.5

500

1000

1500

2000

2500

3000

3500

4000

CODE

Figure 28. DNL, fIN = 9.7 MHz, fSAMPLE = 250 MSPS

40000

35000

30000

25000

20000

15000

10000

5000

N – 3

N – 2

N – 1

N + 1

N + 2

N + 3

BIN

INPUT REFERRED NOISE: 0.72 LSB

Figure 29. Input-Referred Noise Histogram, fSAMPLE = 170 MSPS

40000

35000

30000

25000

20000

15000

10000

5000

N – 3

N – 2

N – 1

N + 1

N + 2

N + 3

BIN

INPUT REFERRED NOISE: 0.70 LSB

Figure 30. Input-Referred Noise Histogram, fSAMPLE = 210 MSPS

40000

35000

30000

25000

20000

15000

10000

5000

N – 3

N – 2

N – 1

N + 1

N + 2

N + 3

BIN

INPUT REFERRED NOISE: 0.71 LSB

Figure 31. Input-Referred Noise Histogram, fSAMPLE = 250 MSPS

–20

–40

–60

–80

–100

–120

–140

100

120

FREQUENCY (Hz)

NPR = 52dB

NOTCH = 18.9MHz

NOTCH WIDTH = 1MHz

Figure 32. Noise Power Ratio (NPR), fSAMPLE = 250 MSPS

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

ANALOG INPUT COMMON-MODE VOLTAGE (V)

SFDR (dBc)

SNR (dB)

Figure 33. SNR/SFDR vs. Analog Input Common-Mode Voltage,

fIN = 84.3 MHz, fSAMPLE = 250 MSPS

Rev. E | Page 15 of 40

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