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AD8420ARMZ-R7 数据表(PDF) 12 Page - Analog Devices |
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AD8420ARMZ-R7 数据表(HTML) 12 Page - Analog Devices |
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12 / 28 page ![]() AD8420 Data Sheet Rev. 0 | Page 12 of 28 40 35 30 25 20 15 10 5 –2.0 0 3.0 2.5 2.0 1.5 1.0 0.5 COMMON-MODE VOLTAGE (V) +2.7V IBIAS (+IN) IBIAS (–IN) –0.2V Figure 21. Input Bias Current vs. Common-Mode Voltage 400 –400 –300 –200 –100 0 100 200 300 –2.0 –1.5 –1.0 –0.5 0 0.5 1.0 1.5 2.0 DIFFERENTIAL INPUT VOLTAGE (V) IBIAS (+IN) IBIAS (–IN) SPECIFIED PERFORMANCE RANGE Figure 22. Input Bias Current vs. Differential Input Voltage, VS = ±15 100 0 20 40 60 80 0.1 1 10 100 1k 10k 100k FREQUENCY (Hz) GAIN = 1000 BANDWIDTH LIMIT GAIN = 100 GAIN = 10 GAIN = 1 Figure 23. PSRR vs. Frequency on 5 V Supply 120 0 20 40 60 80 100 0.1 1 10 100 1k 10k 100k FREQUENCY (Hz) GAIN = 1000 BANDWIDTH LIMIT GAIN = 100 GAIN = 10 GAIN = 1 VS = ±15V Figure 24. Positive PSRR vs. Frequency, RTI, VS = ±15 V 120 0 20 40 60 80 100 0.1 1 10 100 1k 10k 100k FREQUENCY (Hz) GAIN = 1000 GAIN = 100 GAIN = 10 GAIN = 1 BANDWIDTH LIMIT VS = ±15V Figure 25. Negative PSRR vs. Frequency, RTI, VS = ±15 V 70 –30 –20 –10 0 10 20 30 40 50 60 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) VS = ±15V GAIN = 1000 GAIN = 100 GAIN = 10 GAIN = 1 Figure 26. Gain vs. Frequency |
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