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ADAS3022 датащи(PDF) 15 Page - Analog Devices |
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ADAS3022 датащи(HTML) 15 Page - Analog Devices |
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15 / 40 page ![]() Data Sheet ADAS3022 Rev. A | Page 15 of 40 –180 –160 –140 –120 –100 –80 –60 –40 –20 0 0 100 200 300 400 500 FREQUENCY (kHz) GAIN = 6.4 fS = 1000kSPS fIN = 10.1kHz SNR = 85.7dB SINAD = 85.6dB THD = –101dB SFDR = 103dB Figure 24. 10 kHz FFT, PGIA Gain = 6.4 100 95 90 85 80 75 70 1 1000 100 10 FREQUENCY (kHz) GAIN = 0.4, –0.5dBFS GAIN = 0.8, –0.5dBFS GAIN = 1.6, –0.5dBFS GAIN = 3.2, –0.5dBFS GAIN = 0.4, –10dBFS GAIN = 0.8, –10dBFS GAIN = 1.6, –10dBFS GAIN = 3.2, –10dBFS Figure 25. SNR vs. Frequency 100 95 90 85 80 75 70 65 60 55 50 1 1000 100 10 FREQUENCY (kHz) GAIN = 0.4, –0.5dBFS GAIN = 0.8, –0.5dBFS GAIN = 1.6, –0.5dBFS GAIN = 3.2, –0.5dBFS GAIN = 0.4, –10dBFS GAIN = 0.8, –10dBFS GAIN = 1.6, –10dBFS GAIN = 3.2, –10dBFS Figure 26. SINAD vs. Frequency –55 –60 –65 –70 –75 –80 –85 –90 –95 –100 –105 –110 –115 –120 –125 1 1000 100 10 FREQUENCY (kHz) GAIN = 0.4, –0.5dBFS GAIN = 0.8, –0.5dBFS GAIN = 1.6, –0.5dBFS GAIN = 3.2, –0.5dBFS GAIN = 0.4, –10dBFS GAIN = 0.8, –10dBFS GAIN = 1.6, –10dBFS GAIN = 3.2, –10dBFS Figure 27. THD vs. Frequency –60 –70 –80 –90 –100 –110 –120 –130 –140 0 20 40 60 80 100 120 140 160 180 200 FREQUENCY (kHz) INTERNAL REFERENCE CHANNEL 4 TO COM, SEQUENCER DISABLED VIN = –0.5dBFS ON CHANNELS 0 TO 3, 5 TO 7 fS = 1000kSPS Figure 28. Crosstalk vs. Frequency 60 70 80 90 100 110 120 130 1 10 100 1k 10k 100k FREQUENCY (Hz) COMMON-MODE AMPLITUDE = 20.48V p-p INTERNAL REFERENCE fS = 1000kSPS GAIN = 0.16 GAIN = 0.20 GAIN = 0.40 GAIN = 0.80 GAIN = 1.60 GAIN = 3.20 GAIN = 6.40 Figure 29. CMRR vs. Frequency |
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