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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 ![]() AD7606/AD7606-6/AD7606-4 Rev. 0 | 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 105k Ω 48.7k Ω 23.7k Ω 10k Ω 5k Ω 1.2k Ω 100 Ω 51 Ω 0 Ω 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 105k Ω 48.7k Ω 23.7k Ω 10k Ω 5k Ω 1.2k Ω 100 Ω 51 Ω 0 Ω –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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