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AD8450ASTZ 数据表(PDF) 16 Page - Analog Devices |
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AD8450ASTZ 数据表(HTML) 16 Page - Analog Devices |
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16 / 42 page ![]() Data Sheet AD8450 Rev. B | Page 15 of 41 CC AND CV LOOP FILTER AMPLIFIERS, UNCOMMITTED OP AMP, AND VSET BUFFER 500 –500 –400 –300 –200 –100 0 100 200 300 400 –15 –10 –5 0 5 10 15 20 25 INPUT COMMON-MODE VOLTAGE (V) AVCC = +25V AVEE = –5V AVCC = +15V AVEE = –15V Figure 23. Input Offset Voltage vs. Input Common-Mode Voltage for Two Supply Voltage Combinations 100 0 10 20 30 40 50 60 70 80 90 –15 –10 –5 0 5 10 15 20 25 INPUT COMMON-MODE VOLTAGE (V) AVCC = +25V AVEE = –5V AVCC = +15V AVEE = –15V Figure 24. Input Bias Current vs. Input Common-Mode Voltage for Two Supply Voltage Combinations 100 –40 –20 0 20 40 60 80 –40 –30 –20 –10 0 1020304050 60 70 80 90 TEMPERATURE (°C) –IB +IB Figure 25. Input Bias Current vs. Temperature 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 –40 –30 –20 –10 0 102030405060708090 TEMPERATURE (°C) CONSTANT CURRENT LOOP AND CONSTANT VOLTAGE LOOP AMPLIFIERS AVCC = +25V AVEE = –5V AVCC = +15V AVEE = –15V Figure 26. Output Source Current vs. Temperature for Two Supply Voltage Combinations 120 –40 –20 0 20 40 60 80 100 –45.0 –225.0 –202.5 –180.0 –157.5 –135.0 –112.5 –90.0 –67.5 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) PHASE GAIN Figure 27. Open-Loop Gain and Phase vs. Frequency 160 0 20 40 60 80 100 120 140 10 100 1k 10k 100k 1M FREQUENCY (Hz) UNCOMMITTED OP AMP CONSTANT CURRENT LOOP AND CONSTANT VOLTAGE LOOP FILTER AMPLIFIERS Figure 28. CMRR vs. Frequency |
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