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AD7294 датащи(PDF) 18 Page - Analog Devices |
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AD7294 датащи(HTML) 18 Page - Analog Devices |
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18 / 48 page ![]() Data Sheet AD7294 Rev. I | Page 17 of 47 0.8 –0.8 –0.6 –0.4 –0.2 0.2 0.6 0 0.4 0 20 18 16 14 12 10 8 6 4 2 TIME (µs) 64pF 1nF 10nF Figure 24. Zoomed in Settling for a ¼ to ¾ Output Voltage Step 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 40 35 30 25 20 15 10 5 SINK CURRENT (mA) DAC A DAC B DAC C DAC D AVDD = DVDD = 5V OFFSET IN = FLOATING DAC OUT V = 15V VDRIVE = 5V, INTERNAL REF Figure 25. DAC Sinking Current at Input Code = x000, (VOUT = 0 V) 0 –0.1 –0.2 –0.3 –0.4 –0.5 –0.6 –0.7 –0.8 –0.9 –1.0 0 40 35 30 25 20 15 10 5 SOURCE CURRENT (mA) DAC A DAC B DAC C DAC D AVDD = DVDD = 5V OFFSET IN = FLOATING DAC OUT V = 15V VDRIVE = 5V, INTERNAL REF Figure 26. DAC Sourcing Current at Input Code = x000, (VOUT = 0 V) 100 80 60 40 20 0 –20 –40 –60 –80 –100 –50 50 20 40 30 10 0 –10 –20 –30 –40 LOAD CURRENT (mA) DAC A DAC B DAC C DAC D AVDD = DVDD = 5V OFFSET IN = FLOATING DAC OUT V = 15V VDRIVE = 5V, INTERNAL REF Figure 27. DAC Output Voltage vs. Load Current, Input Code = x800 55 50 45 40 35 30 25 20 –5 0 5 10 15 20 TIME (Seconds) Figure 28. Response of the AD7294 to Thermal Shock Using 2N3906 (2N3906 Placed in a Stirred Oil Bath) 55 50 45 40 35 30 25 –5 0 60 55 50 45 40 35 30 25 20 15 10 5 TIME (Seconds) EXTERNAL INTERNAL AD7294 IN SOCKET ON 200mm × 100mm 2-LAYER FR-4 PCB Figure 29. Response to Thermal Shock from Room Temperature into 50°C Stirred Oil (Both the AD7294 and the 2N3906 are Placed in a Stirred Oil Bath) |
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