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AD7606BSTZ датащи(PDF) 19 Page - Analog Devices |
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AD7606BSTZ датащи(HTML) 19 Page - Analog Devices |
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19 / 36 page ![]() Data Sheet AD7606/AD7606-6/AD7606-4 Rev. D | Page 19 of 36 4 3 2 1 0 –1 –2 –3 –40 –25 –10 5 20 35 50 65 80 –4 TEMPERATURE (°C) 200kSPS AVCC, VDRIVE = 5V EXTERNAL REFERENCE 5V RANGE 10V RANGE Figure 23. Bipolar Zero Code Error Matching Between Channels –40 –50 –60 –70 –80 –90 –100 –110 1k 100k 10k –120 INPUT FREQUENCY (Hz) ±10V RANGE AVCC, VDRIVE = +5V FSAMPLE = 200kSPS RSOURCE MATCHED ON Vx AND VxGND INPUTS 105kΩ 48.7kΩ 23.7kΩ 10kΩ 5kΩ 1.2kΩ 100Ω 51Ω 0Ω Figure 24. THD vs. Input Frequency for Various Source Impedances, ±10 V Range 1k 100k 10k INPUT FREQUENCY (Hz) ±5V RANGE AVCC, VDRIVE = +5V FSAMPLE = 200kSPS RSOURCE MATCHED ON Vx AND VxGND INPUTS 105kΩ 48.7kΩ 23.7kΩ 10kΩ 5kΩ 1.2kΩ 100Ω 51Ω 0Ω –40 –50 –60 –70 –80 –90 –100 –110 –120 Figure 25. THD vs. Input Frequency for Various Source Impedances, ±5 V Range 98 96 94 92 90 88 86 84 82 10 100k 10k 1k 100 80 INPUT FREQUENCY (Hz) NO OS OS BY 2 OS BY 4 OS BY 8 OS BY 16 OS BY 32 OS BY 64 AVCC, VDRIVE = 5V FSAMPLE CHANGES WITH OS RATE TA = 25°C INTERNAL REFERENCE ±5V RANGE Figure 26. SNR vs. Input Frequency for Different Oversampling Rates, ±5 V Range 100 98 96 94 92 90 88 86 84 82 10 100k 10k 1k 100 80 INPUT FREQUENCY (Hz) NO OS OS BY 2 OS BY 4 OS BY 8 OS BY 16 OS BY 32 OS BY 64 AVCC, VDRIVE = 5V FSAMPLE CHANGES WITH OS RATE TA = 25°C INTERNAL REFERENCE ±10V RANGE Figure 27. SNR vs. Input Frequency for Different Oversampling Rates, ±10 V Range –50 –60 –70 –80 –90 –100 –110 –120 –130 0 160 140 120 100 80 60 40 20 –140 NOISE FREQUENCY (kHz) ±10V RANGE ±5V RANGE AVCC, VDRIVE = 5V INTERNAL REFERENCE AD7606 RECOMMENDED DECOUPLING USED FSAMPLE = 150kSPS TA = 25°C INTERFERER ON ALL UNSELECTED CHANNELS Figure 28. Channel-to-Channel Isolation |
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