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AD4021BCPZ-R2 数据表(PDF) 13 Page - Analog Devices |
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AD4021BCPZ-R2 数据表(HTML) 13 Page - Analog Devices |
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13 / 39 page ![]() Data Sheet AD4020/AD4021/AD4022 Rev. B | Page 13 of 39 102 96 90 100 92 94 98 88 17.0 15.5 16.5 14.5 15.0 16.0 14.0 1k 100k 10k 900k INPUT FREQUENCY (Hz) ENOB SINAD SNR Figure 17. SNR, SINAD, and Effective Number of Bits (ENOB) vs. Input Frequency 102 97 99 100 101 98 95 96 94 16.6 15.4 15.6 15.8 16.0 16.2 16.4 2.4 4.8 4.5 3.9 4.2 3.6 3.3 3.0 2.7 5.1 REFERENCE VOLTAGE (V) ENOB SINAD SNR Figure 18. SNR, SINAD, and ENOB vs. Reference Voltage, fIN = 1 kHz 100.8 100.0 100.4 100.6 100.2 99.6 99.8 99.4 16.42 16.22 16.24 16.26 16.28 16.30 16.32 16.34 16.36 16.38 16.40 TEMPERATURE (°C) ENOB SINAD SNR –40 100 80 60 40 20 0 –20 120 Figure 19. SNR, SINAD, and ENOB vs. Temperature, fIN = 1 kHz –90 –105 –95 –115 –110 –100 –120 120 105 115 95 100 110 90 1k 100k 10k 900k INPUT FREQUENCY (Hz) THD SFDR Figure 20. THD and SFDR vs. Input Frequency –114 –124 –120 –118 –116 –122 –128 –126 –130 133 126 127 128 130 129 131 132 2.4 4.8 4.5 3.9 4.2 3.6 3.3 3.0 2.7 5.1 REFERENCE VOLTAGE (V) SFDR THD Figure 21. THD and SFDR vs. Reference Voltage, fIN = 1 kHz –114.0 –114.5 –116.5 –115.5 –115.0 –116.0 –117.0 –117.5 118.0 117.9 117.4 117.7 117.8 117.6 117.2 117.3 117.5 117.1 117.0 –40 100 80 60 40 20 0 –20 120 TEMPERATURE (°C) THD SFDR Figure 22. THD and SFDR vs. Temperature, fIN = 1 kHz |
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