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AD8420ARMZ-R7 数据表(PDF) 15 Page - Analog Devices |
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AD8420ARMZ-R7 数据表(HTML) 15 Page - Analog Devices |
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15 / 27 page ![]() AD8420 Data Sheet Rev. A | Page 14 of 26 30 0 200 150 100 50 0 –50 –100 5 10 15 20 25 –40 125 110 95 80 65 50 35 20 5 –10 –25 TEMPERATURE (°C) OFFSET CURRENT –IN BIAS CURRENT +IN BIAS CURRENT Figure 33. FB, REF Bias Current and FB, REF Offset Current vs. Temperature 1000 –1000 –800 –600 –400 –200 0 200 400 600 800 –40 80 65 50 35 20 5 –10 –25 TEMPERATURE (°C) PART A VIN = ±1V VS = ±15V PART B REPRESENTATIVE DATA NORMALIZED TO 25ºC Figure 34. Gain Error vs. Temperature, G = 1, VIN = ±1 V, VS = ±15 V 1000 –1000 –800 –600 –400 –200 0 200 400 600 800 –40 80 65 50 35 20 5 –10 –25 TEMPERATURE (°C) PART A VIN = ±0.1V VS = ±15V PART B REPRESENTATIVE DATA NORMALIZED TO 25ºC Figure 35. Gain Error vs. Temperature, G = 1, VIN = ±0.1 V, VS = ±15 V 400 –400 –300 –200 –100 0 100 200 300 –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) NORMALIZED TO 25°C Figure 36. Offset Drift –40 –25 –10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) –4 5 4 3 2 1 0 –1 –2 –3 PART A: 0.024ppm/°C PART B: 0.038ppm/°C REPRESENTATIVE DATA NORMALIZED AT 25°C VS = ±15V Figure 37. CMRR vs. Temperature, G = 1, VS = ±15 V +VS –VS +0.3 +0.2 +0.1 –0.3 –0.2 –0.1 218 16 14 12 10 8 6 4 SUPPLY VOLTAGE (±VS) RL = 20kΩ –40°C +25°C +85°C +125°C Figure 38. Output Voltage Swing vs. Supply Voltage, RL = 20 kΩ |
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