AD7764 datasheet(12/34 Pages) AD

12 / 34 page

Data Sheet

AD7764

Rev. B | Page 11 of 33

TYPICAL PERFORMANCE CHARACTERISTICS

AVDD1 = DVDD = 2.5 V, AVDD2 = AVDD3 = AVDD4 = 5 V, VREF+ = 4.096 V, MCLK amplitude = 5 V, TA = 25°C. Linearity plots measured to

16-bit accuracy. Input signal reduced to avoid modulator overload and digital clipping; fast Fourier transforms (FFTs) of −0.5 dB tones are

generated from 262,144 samples in normal power mode. All other FFTs are generated from 8192 samples.

–25

–50

–75

–100

–125

–150

–175

50k

100k

156.249k

FREQUENCY (Hz)

Figure 6. Normal Power Mode, FFT,1 kHz, −0.5 dB Input Tone,

64× Decimation Rate

–25

–50

–75

–100

–125

–150

–175

20k

40k

60k

78.124k

FREQUENCY (Hz)

Figure 7. Normal Power Mode, FFT,1 kHz, −0.5 dB Input Tone,

128× Decimation Rate

–25

–50

–75

–100

–125

–150

–175

10k

20k

30k

39.062k

FREQUENCY (Hz)

Figure 8. Normal Power Mode, FFT,1 kHz, −0.5 dB Input Tone,

256× Decimation Rate

150k

125k

100k

75k

50k

25k

FREQUENCY (Hz)

–25

–50

–75

–100

–125

–150

–175

Figure 9. Low Power Mode, FFT,1 kHz, −0.5 dB Input Tone,

64× Decimation Rate

10k

20k

30k

40k

50k

60k

70k

FREQUENCY (Hz)

–25

–50

–75

–100

–125

–150

–175

Figure 10. Low Power Mode, FFT,1 kHz, −0.5 dB Input Tone,

128× Decimation Rate

10k

15k

20k

25k

30k

35k

FREQUENCY (Hz)

–25

–50

–75

–100

–125

–150

–175

Figure 11. Low Power Mode, FFT,1 kHz, −0.5 dB Input Tone,

256× Decimation Rate

AD7764 Datasheet(PDF) 12 Page - Analog Devices

AD7764 Datasheet(HTML) 12 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

Datasheet Download

Link URL