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AD7293 bảng dữ liệu(PDF) 19 Page - Analog Devices |
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AD7293 bảng dữ liệu(HTML) 19 Page - Analog Devices |
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19 / 79 page ![]() Data Sheet AD7293 Rev. D | Page 19 of 79 –4.65 –5.05 –5.00 –4.95 –4.90 –4.85 –4.80 –4.75 –4.70 –16 –14 –12 –10 –8 –6 –4 –2 0 LOAD CURRENT (mA) –5V TO 0V, CODE 246 (ZERO SCALE + 300mV) –5V TO 0V, CODE 0 (ZERO SCALE) Figure 20. BI-VOUT0 Output Voltage (Zero Scale) vs. Load Current 6 –6 –4 –2 0 2 4 –80 –60 –40 –20 0 20 40 60 80 LOAD CURRENT (mA) BI-VOUT0 0/4 SCALE BI-VOUT0 1/4 SCALE BI-VOUT0 2/4 SCALE BI-VOUT0 3/4 SCALE BI-VOUT0 4/4 SCALE Figure 21. BI-VOUT0 Output Voltage vs. Load Current 500 –500 –400 –300 –200 –100 0 100 200 300 400 –40 120 100 80 60 40 20 0 –20 TEMPERATURE (°C) UNIPOLAR GAIN ERROR, +2.5V TO +7.5V UNIPOLAR GAIN ERROR, +5V TO +10V UNIPOLAR GAIN ERROR, 0V TO +5V BIPOLAR GAIN ERROR, 0V TO +5V BIPOLAR GAIN ERROR, –4V TO +1V BIPOLAR GAIN ERROR, –5V TO 0V Figure 22. DAC Gain Error vs. Temperature 16 –4 –2 0 2 4 6 8 10 12 14 –40 120 100 80 60 40 20 0 –20 TEMPERATURE (°C) UNIPOLAR OFFSET ERROR 0V TO +5V UNIPOLAR OFFSET ERROR +2.5V TO +7.5V UNIPOLAR OFFSET ERROR +5V TO +10V BIPOLAR OFFSET ERROR 0V TO +5V BIPOLAR OFFSET ERROR –4V TO +1V BIPOLAR OFFSET ERROR –5V TO 0V Figure 23. DAC Offset Error vs. Temperature 12 11 10 9 8 7 6 5 4 3 2 1 0 –1 –4.45 –5.10 –5.05 –5.00 –4.95 –4.90 –4.85 –4.80 –4.75 –4.70 –4.65 –4.60 –4.55 –4.50 0 5 10 15 20 25 30 35 40 TIME (ms) AVDD PA_ON AVSS DAC BIPOLAR OUTPUT Figure 24. Bipolar DAC Response to AVDD Failure 10 5 0 –5 –10 –15 –20 0 500 1000 1500 2000 2500 3000 3500 4000 CODE UNIPOLAR, 0V TO 5V, HIGH TO LOW UNIPOLAR, 5V TO 10V, LOW TO HIGH UNIPOLAR, 0V TO 5V, LOW TO HIGH BIPOLAR, 0V TO 5V, HIGH TO LOW UNIPOLAR, 5V TO 10V, HIGH TO LOW BIPOLAR, 0V TO 5V, LOW TO HIGH Figure 25. DAC Glitch Energy vs. Code |
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