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AD7482ASTZ датащи(PDF) 9 Page - Analog Devices |
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AD7482ASTZ датащи(HTML) 9 Page - Analog Devices |
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9 / 20 page ![]() AD7482 Rev. B | Page 9 of 20 TYPICAL PERFORMANCE CHARACTERISTICS FREQUENCY (kHz) 0 0 200 400 600 800 1400 –20 –40 –80 –100 –120 –60 1000 1200 fIN = 10.7kHz SNR = 72.97dB SNR + D = 72.94dB THD = –91.5dB Figure 3. 64k FFT Plot With 10 kHz Input Tone FREQUENCY (kHz) 0 0 200 400 600 800 1400 –20 –40 –80 –100 –120 –60 1000 1200 fIN = 1.013MHz SNR = 72.58dB SNR + D = 72.57dB THD = –94.0dB Figure 4. 64k FFT Plot With 1 MHz Input Tone ADC (Code) 0.5 0 1024 2048 4096 0.4 0.1 –0.3 –0.4 –0.5 –0.2 3072 0.3 0 0.2 –0.1 Figure 5. Typical DNL ADC (Code) 0.5 0 1024 2048 4096 0.4 0.1 –0.3 –0.4 –0.5 –0.2 3072 0.3 0 0.2 –0.1 Figure 6. Typical INL INPUT FREQUENCY (kHz) 80 65 10 10000 100 1000 70 75 Figure 7. SINAD vs. Input Tone (AD8021 Input Circuit) INPUT FREQUENCY (kHz) –40 100 1000 –70 –90 –100 –60 10000 –50 –80 100 Ω 10 Ω 0 Ω 51 Ω 200 Ω Figure 8. THD vs. Input Tone for Different Input Resistances |
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