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ADAS3022 数据表(PDF) 13 Page - Analog Devices |
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ADAS3022 数据表(HTML) 13 Page - Analog Devices |
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13 / 40 page ![]() Data Sheet ADAS3022 Rev. A | Page 13 of 40 0 50,000 100,000 150,000 200,000 250,000 300,000 350,000 400,000 CODE IN HEX GAIN = 6.4 300 200 21,700 82,000 157,300 151,900 75,100 18,400 2,400 100 Figure 12. Histogram of a DC Input at Code Center, PGIA Gain = 6.4 0 10 20 30 40 50 60 70 80 90 100 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 OFFSET DRIFT (ppm/°C) EXTERNAL REFERENCE GAIN = 0.16, 0.2, 0.4, 0.8, 1.6 f S = 1000kSPS Figure 13. Offset Drift, PGIA Gain = 0.16, 0.2, 0.4, 0.8, and 1.6 0 10 20 30 40 50 60 70 80 90 100 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 OFFSET DRIFT (ppm/°C) EXTERNAL REFERENCE GAIN = 3.2 f S = 1000kSPS Figure 14. Offset Drift, PGIA Gain = 3.2 0 10 20 30 40 50 60 70 80 90 100 0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 OFFSET DRIFT (ppm/°C) EXTERNAL REFERENCE GAIN = 6.4 f S = 1000kSPS Figure 15. Offset Drift, PGIA Gain = 6.4 112 72 23 2 0 20 40 60 80 100 120 0 1 2 3 4 5 6 7 8 9 10 REFERENCE BUFFER DRIFT (ppm/°C) fS = 1000kSPS EXTERNAL 2.5V REFERENCE INTERNAL BUFFER Figure 16. Reference Buffer Drift, External Reference 46 35 30 15 15 11 10 6 2 1 0 20 40 60 80 100 120 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 REFERENCE BUFFER DRIFT (ppm/°C) 38 fS = 1000kSPS INTERNAL 2.5V REFERENCE INTERNAL BUFFER Figure 17. Reference Buffer Drift, Internal Reference |
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