AD9231 datasheet(13/36 Pages) AD

13 / 36 page

AD9231

Rev. 0 | Page 13 of 36

AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, DCS

disabled, unless otherwise noted.

–120

–100

–80

–60

–40

–20

–70

–60

–50

–40

INPUT AMPLITUDE (dBFS)

–30

–20

–10

SFDR (dBc)

SFDR (dBFS)

IMD3 (dBc)

IMD3 (dBFS)

Figure 12. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with

fIN1 = 28.3 MHz and fIN2 = 30.6 MHz

100

150

200

INPUT FREQUENCY (MHz)

SNR

SFDR

Figure 13. AD9231-80 SNR/SFDR vs. Input Frequency (AIN) with

2 V p-p Full Scale

0.3

0.2

0.1

–0.1

–0.2

–0.3

500

1000

1500

2000

2500

3000

3500

4000

OUTPUT CODE

Figure 14. AD9231-80 DNL Error with fIN = 9.7 MHz

100

SAMPLE RATE (MHz)

SNRFS

SFDR

Figure 15. AD9231-80 SNR/SFDR vs. Sample Rate with AIN = 9.7 MHz

100

–70

–60

–50

–40

–30

–20

–10

INPUT AMPLITUDE (dBc)

SNR

SNRFS

SFDR

SFDRFS

Figure 16. AD9231-80 SNR/SFDR vs. Input Amplitude (AIN) with fIN = 9.7 MHz

–0.2

0.4

0.2

0.4

500

1000

1500

2000

2500

3000

3500

4000

OUTPUT CODE

Figure 17. AD9231-80 INL with fIN = 9.7 MHz

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