AD4002 datasheet(12/39 Pages) AD

12 / 39 page

AD4002/AD4006/AD4010

Data Sheet

Rev. A | Page 12 of 39

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50k

CODE

VREF = 2.5V

VREF = 5V

Figure 11. Histogram of a DC Input at Code Center, VREF = 2.5 V and VREF = 5 V

–180

–160

–140

–120

–100

–80

–60

–40

–20

100

10k

100k

FREQUENCY (Hz)

VREF = 5V

SNR = 95.21dB

THD = 125.11dB

SINAD = 95.20dB

Figure 12. 1 kHz, −0.5 dBFS Input Tone Fast Fourier Transform (FFT),

VREF = 5 V

–180

–160

–140

–120

–100

–80

–60

–40

–20

10k

100k

FREQUENCY (Hz)

VREF = 5V

SNR = 95.03dB

THD = –106.66dB

SINAD = 94.86dB

Figure 13. 100 kHz, −0.5 dBFS Input Tone FFT

250k

200k

150k

100k

50k

CODE

VREF = 2.5V

VREF = 5V

Figure 14. Histogram of a DC Input at Code Transition, VREF = 2.5 V and VREF = 5 V

–180

–160

–140

–120

–100

–80

–60

–40

–20

100

10k

100k

FREQUENCY (Hz)

VREF = 2.5V

SNR = 89.27dB

THD = –123.5dB

SINAD = 89.27dB

Figure 15. 1 kHz, −0.5 dBFS Input Tone FFT, VREF = 2.5 V

–180

–160

–140

–120

–100

–80

–60

–40

–20

10k

100k

FREQUENCY (Hz)

VREF = 5V

SNR = 94.05dB

THD = –91.87dB

SINAD = 90.12dB

Figure 16. 400 kHz, −0.5 dBFS Input Tone FFT

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