AD7983BCPZ-R2 datasheet(9/25 Pages) AD

9 / 25 page

AD7983

Data Sheet

Rev. B | Page 8 of 24

TYPICAL PERFORMANCE CHARACTERISTICS

VDD = 2.5 V, REF = 5 V, VIO = 3.3 V, unless otherwise noted.

1.25

–1.25

65536

CODE

1.00

0.75

0.50

0.25

–0.25

–0.50

–0.75

–1.00

16384

32768

49152

POSITIVE INL: 0.30LSB

NEGATIVE INL: –0.37LSB

Figure 6. Integral Nonlinearity vs. Code

120k

7FB6

CODE IN HEX

100k

80k

60k

40k

20k

7FB7 7FB8 7FB9 7FBA 7FBB 7FBC 7FBD 7FBE 7FBF 7FC0 7FC1 7FC2

17590

16604

96765

Figure 7. Histogram of a DC Input at the Code Center

–180

FREQUENCY (kHz)

–20

–40

–60

–80

–100

–120

–140

–160

100

200

300

400

500

600

fS = 1.33MSPS

fIN = 10kHz

SNR = 91.6dB

THD = –114.9dB

SFDR = 113.8dB

SINAD = 91.6dB

Figure 8. FFT Plot

1.00

–1.00

65536

CODE

16384

32768

49152

0.75

0.50

0.25

–0.25

–0.50

–0.75

POSITIVE DNL: 0.14LSB

NEGATIVE DNL: –0.14LSB

Figure 9. Differential Nonlinearity vs. Code

80k

7FF7

CODE IN HEX

7FF8 7FF9 7FFA 7FFB 7FFC 7FFD 7FFE 7FFF 8000 8001 8002 8003

70k

60k

50k

40k

30k

20k

10k

829

1146

67532

61565

Figure 10. Histogram of a DC Input at the Code Transition

–10

INPUT LEVEL (dB of Full Scale)

–9

–8

–7

–6

–5

–4

–3

–2

–1

Figure 11. SNR vs. Input Level

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