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AD7654ASTZ 数据表(PDF) 13 Page - Analog Devices |
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AD7654ASTZ 数据表(HTML) 13 Page - Analog Devices |
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13 / 28 page ![]() AD7654 Data Sheet Rev. D | Page 12 of 27 TYPICAL PERFORMANCE CHARACTERISTICS CODE –1 –5 –3 65535 0 –2 –4 32768 16384 49152 0 1 2 3 4 5 Figure 6. Integral Nonlinearity vs. Code CODE IN HEX 7FBF 0 8000 6000 4000 2000 0 7000 3000 1000 5000 7FC0 0 7FC1 14 7FC2 953 7FC3 7288 7FC4 7220 7FC5 903 7FC6 6 7FC7 0 7FC8 0 Figure 7. Histogram of 16,384 Conversions of a DC Input at the Code Transition FREQUENCY (kHz) –120 –160 150 0 –140 100 50 125 –100 –80 –60 –40 –20 0 25 75 175 200 225 250 8192 POINT FFT fS = 500kHz fIN = 100kHz, –0.5dB SNR = 89.9dB SINAD = 89.4dB THD = –99.3dB Figure 8. FFT Plot CODE –3 0 –2 16384 32768 –1 0 1 2 3 49152 65535 Figure 9. Differential Nonlinearity vs. Code CODE IN HEX 8000 7FC0 0 7000 4000 2000 0 6000 3000 1000 5000 7FC1 7FC2 7FC3 176 7FC4 7FC5 132 7FC6 7FC7 00 7FBF 0 9366 9000 10000 3411 3299 Figure 10. Histogram of 16,384 Conversions of a DC Input at the Code Center TEMPERATURE (°C) 96 84 90 25 125 –55 93 87 –35 65 45 5 105 –15 85 –98 –106 –102 –100 –104 SNR THD Figure 11. SNR, THD vs. Temperature |
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