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AD822 数据表(PDF) 13 Page - Analog Devices |
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AD822 数据表(HTML) 13 Page - Analog Devices |
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13 / 88 page ![]() ADuC841/ADuC842/ADuC843 Rev. 0 | Page 13 of 88 ADC CODES –1.0 0 511 1023 2047 2559 3071 –0.8 1535 3583 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 1.0 AVDD/DVDD = 5V fS = 400kHz CD = 4 4095 Figure 7. Typical INL Error, VDD = 5 V, fS = 400 kHz ADC CODES –1.0 0 511 1023 2047 2559 3071 –0.8 1535 3583 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 1.0 AVDD/DVDD = 3V fS = 400kHz CD = 4 4095 Figure 8. Typical INL Error, VDD = 3 V, fS = 400 kHz EXTERNAL REFERENCE (V) 1.2 0.8 0.4 0 –0.4 –0.6 1.0 0.6 0.2 –0.2 AVDD/DVDD = 5V f S = 152kHz 0.5 1.0 1.5 2.0 2.5 5.0 0.6 0.4 0 –0.4 –0.6 0.2 –0.2 WCN INL WCP INL Figure 9. Typical Worst-Case INL Error vs. VREF, VDD = 5 V EXTERNAL REFERENCE (V) 0.8 0.4 0 –0.4 –0.8 0.6 0.2 –0.2 AVDD/DVDD = 3V f S = 152kHz 0.5 1.5 2.5 –0.6 0.8 0.4 0 –0.4 –0.8 0.6 0.2 –0.2 –0.6 3.0 2.0 1.0 WCN INL WCP INL Figure 10. Typical Worst-Case INL Error vs. VREF, VDD = 3 V ADC CODES 1.0 511 1023 1535 2047 2559 0.6 0.2 –0.2 –0.6 –1.0 0.8 0.4 0 –0.4 –0.8 3071 3583 0 4095 AV DD/DVDD = 5V f S = 152kHz Figure 11. Typical DNL Error, VDD = 5 V ADC CODES 1.0 511 1023 1535 2047 2559 0.6 0.2 –0.2 –0.6 –1.0 0.8 0.4 0 –0.4 –0.8 3071 3583 0 4095 AV DD/DVDD = 3V f S = 152kHz Figure 12. Typical DNL Error, VDD = 3 V |
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