AD9226AST datasheet(9/28 Pages) AD

9 / 28 page

REV. B

FREQUENCY – MHz

–120

–100

–80

–60

–40

–20

32.5

6.5

19.5

–110

–90

–70

–50

–30

–10

SNR = 69.9dBc

SINAD = 69.8dBc

ENOB = 11.4BITS

THD = –86.4dBc

SFDR = 88.7dBc

TPC 1. Single-Tone 8K FFT with fIN = 5 MHz

FREQUENCY – MHz

–120

–100

–80

–60

–40

–20

32.5

6.5

19.5

–110

–90

–70

–50

–30

–10

SNR = 70.4dBFS

SFDR = 87.5dBFS

TPC 2. Dual-Tone 8K FFT with fIN–1 = 18 MHz and

fIN–2 = 20 MHz (AIN–1 = AIN–2 = –6.5 dBFS)

FREQUENCY – MHz

–120

–100

–80

–60

–40

–20

32.5

6.5

19.5

–110

–90

–70

–50

–30

–10

SNR = 69.5dBc

SINAD = 69.4dBc

ENOB = 11.3BITS

THD = –85dBc

SFDR = 87.6dBc

TPC 3. Single-Tone 8K FFT with fIN = 31 MHz

(AVDD = 5.0 V, DRVDD = 3.0 V, fSAMPLE = 65 MSPS with CLK Stabilizer Enabled, TA = 25 C, 2 V Differential Input Span, VCM = 2.5 V, AIN = –0.5 dBFS,

VREF = 2.0 V, unless otherwise noted.)

Typical Performance Characteristics–AD9226

–9–

SNR – dBFS

SFDR – dBc

SFDR – dBFS

SNR – dBc

100

AIN – dBFS

–30

–25

–20

–15

–10

–5

TPC 4. Single-Tone SNR/SFDR vs. AIN with fIN = 5 MHz

SNR – dBFS

SFDR – dBc

SNR – dBc

100

AIN – dBFS

–30

–25

–20

–15

–10

–5

SFDR – dBFS

TPC 5. Dual-Tone SNR/SFDR vs. AIN with fIN–1 = 18 MHz

and fIN–2 = 20 MHz

100

AIN – dBFS

–30

–25

–20

–15

–10

–5

SNR – dBFS

SFDR – dBc

SFDR – dBFS

SNR – dBc

TPC 6. Single-Tone SNR/SFDR vs. AIN with fIN = 31 MHz

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