AD7762
Data Sheet
Rev. A | Page 10 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
AVDD1 = DVDD = VDRIVE = 2.5 V, AVDD2 = AVDD3 = AVDD4 = 5 V, VREF = 4.096 V, TA = 25°C, normal mode, unless otherwise noted. All FFTs
are generated from 65,536 samples using a 7-term Blackman-Harris window.
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FREQUENCY (Hz)
AMPLITUDE
(dB)
05477-006
Figure 5. Normal Mode FFT, 1 kHz, 0.5 dB Input Tone, 256× Decimation
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FREQUENCY (Hz)
AMPLITUDE
(dB)
05477-007
Figure 6. Normal Mode FFT, 1 kHz, 6 dB Input Tone, 256× Decimation
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24000
FREQUENCY (Hz)
AMPLITUDE
(dB)
05477-008
Figure 7. Normal Mode FFT, 1 kHz, 60 dB Input Tone, 256× Decimation
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24000
FREQUENCY (Hz)
AMPLITUDE
(dB)
05477-009
Figure 8. Low Power FFT, 1 kHz, 0.5 dB Input Tone, 256× Decimation
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24000
FREQUENCY (Hz)
AMPLITUDE
(dB)
05477-010
Figure 9. Low Power FFT, 1 kHz, 6 dB Input Tone, 256× Decimation
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FREQUENCY (Hz)
AMPLITUDE
(dB)
05477-011
Figure 10. Low Power FFT, 1 kHz, 60 dB Input Tone, 256× Decimation