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AD7265 数据表(PDF) 11 Page - Analog Devices |
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AD7265 数据表(HTML) 11 Page - Analog Devices |
11 / 29 page AD7265 Rev. A | Page 10 of 28 CODE 2046 2047 2049 2048 2050 10000 8000 9000 6000 7000 4000 5000 2000 1000 3000 0 10000 CODES DIFFERENTIAL MODE INTERNAL REFERENCE VREF (V) 2.5 0 0.5 1.0 1.5 2.0 1.0 0.6 0.8 0.2 0.4 –0.2 0 –0.6 –0.4 –1.0 –0.8 VDD = 3V/5V DIFFERENTIAL MODE POSITIVE INL POSITIVE DNL NEGATIVE DNL NEGATIVE INL Figure 10. Linearity Error vs. V Figure 13. Histogram of Codes for 10k Samples in Differential Mode REF VREF (V) 5.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12.0 11.0 11.5 10.0 10.5 9.0 9.5 8.0 7.5 8.5 7.0 VDD = 5V DIFFERENTIAL MODE VDD = 3V DIFFERENTIAL MODE VDD = 3V SINGLE-ENDED MODE VDD = 5V SINGLE-ENDED MODE CODE 2046 2047 2048 2049 2050 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 9984 CODES SINGLE-ENDED MODE INTERNAL REFERENCE 5 CODES 11 CODES Figure 11. Effective Number of Bits vs. VREF Figure 14. Histogram of Codes for 10k Samples in Single-Ended Mode CURRENT LOAD ( μA) 200 0 20 40 60 80 100 120 140 160 180 2.5010 2.5000 2.5005 2.4995 2.4990 2.4985 2.4980 RIPPLE FREQUENCY (kHz) 1200 0 200 400 600 800 1000 –60 –65 –70 –75 –80 –85 –95 –90 –100 DIFFERENTIAL MODE VDD = 3V/5V vs. Reference Output Current Drive Figure 12. VREF Figure 15. CMRR vs. Common-Mode Ripple Frequency |
类似零件编号 - AD7265_15 |
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类似说明 - AD7265_15 |
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