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AD5124 bảng dữ liệu(PDF) 19 Page - Analog Devices |
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AD5124 bảng dữ liệu(HTML) 19 Page - Analog Devices |
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19 / 36 page ![]() Data Sheet AD5124/AD5144/AD5144A Rev. B | Page 19 of 36 0 0.2 0.4 0.6 0.8 1.0 1.2 0 1 2 3 4 5 DIGITAL INPUT VOLATGE (V) I2C, VLOGIC = 1.8V I2C, VLOGIC = 2.3V I2C, VLOGIC = 3.3V I2C, VLOGIC = 5V I2C, VLOGIC = 5.5V SPI, VLOGIC = 1.8V SPI, VLOGIC = 2.3V SPI, VLOGIC = 3.3V SPI, VLOGIC = 5V SPI, VLOGIC = 5.5V Figure 24. ILOGIC Current vs. Digital Input Voltage –60 –50 –40 –30 –20 –10 0 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) AD5144/AD5144A (AD5124) 0x80 (0x40) 0x40 (0x20) 0x20 (0x10) 0x10 (0x08) 0x8 (0x04) 0x4 (0x02) 0x2 (0x01) 0x1 (0x00) 0x00 Figure 25. 10 kΩ Gain vs. Frequency vs. Code –100 –90 –80 –70 –60 –50 –40 20 200 2k 20k 200k FREQUENCY (Hz) 10k Ω 100k Ω VDD/VSS = ±2.5V VA = 1V rms VB = GND CODE = HALF SCALE NOISE FILTER = 22kHz Figure 26. Total Harmonic Distortion Plus Noise (THD + N) vs. Frequency –100 –80 –60 –40 –20 0 20 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) QUARTER SCALE MIDSCALE FULL-SCALE VDD/VSS = ±2.5V RAB = 10kΩ Figure 27. Normalized Phase Flatness vs. Frequency, RAB = 10 kΩ –90 –80 –70 –60 –50 –40 –30 –20 –10 0 FREQUENCY (Hz) 10 100 1k 10k 100k 1M 10M 0x80 (0x40) 0x40 (0x20) 0x20 (0x10) 0x10 (0x08) 0x8 (0x04) 0x4 (0x02) 0x2 (0x01) 0x1 (0x00) 0x00 AD5144/AD5144A (AD5124) Figure 28. 100 kΩ Gain vs. Frequency vs. Code 10k Ω 100k Ω –90 –80 –70 –60 –50 –40 –30 –20 –10 0 0.001 0.01 0.1 1 VOLTAGE (V rms) VDD/VSS = ±2.5V fIN = 1kHz CODE = HALF SCALE NOISE FILTER = 22kHz Figure 29. Total Harmonic Distortion Plus Noise (THD + N) vs. Amplitude |
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