AD7653 datasheet(9/24 Pages) AD

9 / 24 page

Data Sheet

AD7625

Rev. A | Page 9 of 24

TYPICAL PERFORMANCE CHARACTERISTICS

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

–140

–160

–180

0.5

1.0

1.5

2.0

2.5

3.0

Figure 3. FFT 2 kHz Input Tone, Full View

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

–140

–160

–180

0.5

1.0

1.5

2.0

2.5

3.0

INPUT TONE = 50kHz

SNR = 93.04dB

SINAD = 92.63dB

THD = –103.57dB

SFDR = –102.69dB

Figure 4. FFT 50 kHz Input Tone

16,384

32,768

49,152

65,536

–0.4

–0.3

–0.2

–0.1

0.1

0.2

0.3

0.4

0.5

–0.5

CODE

Figure 5. Differential Nonlinearity vs. Code

FREQUENCY (kHz)

–20

–40

–60

–80

–100

–120

–140

–160

–180

INPUT TONE = 2kHz

SNR = 93.16dB

SINAD = 92.09dB

THD = –110.45dB

SFDR = 111.37dB

Figure 6. FFT 2 kHz Input Tone, Zoom In on Input Tone and Harmonics

FREQUENCY (MHz)

–20

–40

–60

–80

–100

–120

–140

–160

–180

0.5

1.0

1.5

2.0

2.5

3.0

INPUT TONE = 100kHz

SNR = 92.91dB

SINAD = 92.55dB

THD = –103.11dB

SFDR = –103.41dB

Figure 7. FFT 100 kHz Input Tone

16,384

32,768

49,152

65,536

–0.8

–0.6

–0.4

–0.2

0.2

0.4

0.6

0.8

1.0

–1.0

CODE

Figure 8. Integral Nonlinearity vs. Code

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