AD9218 datasheet(12/24 Pages) AD

12 / 24 page

REV. 0

AD9218

–12–

SFDR 1V

SFDR 2V

H3 2V

H2 2V

H2 1V

AIN FREQUENCY – MHz

100

120

140

160

180

2V SINGLE-ENDED DRIVE

1V DIFFERENTIAL DRIVE

TPC 13. Harmonic Distortion (Second and Third) and

SFDR vs. AIN Frequency (FS = 65 MSPS)

3rd

SFDR

AIN FREQUENCY – MHz

2nd

TPC 14. Harmonic Distortion (Second and Third) and

SFDR vs. AIN Frequency (1 V p-p, FS = 40 MSPS)

ENCODE RATE – MSPS

020

SINAD

SFDR

100

120

TPC 15. SINAD and SFDR vs. Encode Rate

(fIN = 10.3 MHz, 105 MSPS Grade) AIN = –0.5 dBFS

Differential, 1 V p-p Analog Input Range

–100

–90

32.5

–80

–70

–60

–50

–40

–30

–20

–10

ENCODE = 65MSPS

AIN1 = 28.1MHz AT –7dBFS

AIN2 = 29.1MHz AT –7dBFS

SFDR = –72.9dBFS

TPC 16. Two-Tone Intermodulation Distortion

(28 MHz, 29 MHz; 1 V p-p, FS = 65 MSPS)

–10

–20

–30

–40

–50

–60

–70

–80

–90

–100

ENCODE = 40MSPS

AIN1 = 10MHz AT –7dBFS

AIN2 = 11MHz AT –7dBFS

SFDR = 74dBc

TPC 17. Two–Tone Intermodulation Distortion

(10 MHz, 11 MHz; 1 V p-p, FS = 40 MSPS)

ENCODE RATE – MHz

102030

SINAD

SNR

SFDR

TPC 18. SINAD and SFDR vs. Encode Rate

(AIN = 10.3 MHz, 65 MSPS Grade) AIN = –0.5 dBFS

Differential, 1 V p-p Analog Input Range

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