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AD7607 数据表(PDF) 16 Page - Analog Devices |
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AD7607 数据表(HTML) 16 Page - Analog Devices |
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16 / 33 page ![]() Data Sheet AD7607 Rev. C | Page 15 of 32 5.00 3.75 2.50 1.25 0 –1.25 –2.50 –3.75 –40 –25 –10 5 20 35 50 65 80 –5.00 TEMPERATURE (°C) 200kSPS AVCC, VDRIVE = 5V EXTERNAL REFERENCE ±5V RANGE ±10V RANGE Figure 15. NFS Error vs. Temperature 5.00 3.75 2.50 1.25 0 –1.25 –2.50 –3.75 –40 –25 –10 5 20 35 50 65 80 –5.00 TEMPERATURE (°C) 200kSPS AVCC, VDRIVE = 5V EXTERNAL REFERENCE ±5V RANGE ±10V RANGE Figure 16. PFS Error vs. Temperature 2.5 –40 –25 –10 5 20 35 50 65 80 –2.5 –2.0 –1.5 –1.0 –0.5 0 0.5 1.0 1.5 2.0 TEMPERATURE (°C) 10V RANGE AVCC, VDRIVE = 5V EXTERNAL REFERENCE PFS ERROR NFS ERROR Figure 17. PFS and NFS Error Matching vs. Temperature 10 8 6 4 2 0 0 120k 100k 80k 60k 40k 20k –2 SOURCE RESISTANCE (Ω) AVCC, VDRIVE = 5V FSAMPLE = 200 kSPS TA = 25°C EXTERNAL REFERENCE SOURCE RESISTANCE IS MATCHED ON THE VxGND INPUT ±10V AND ±5V RANGE Figure 18. PFS and NFS Error vs. Source Resistance 80 81 82 83 84 85 86 10 100 1k 10k 100k INPUT FREQUENCY (Hz) AVCC = VDRIVE = 5V INTERNAL REFERENCE fSAMPLE = 200kSPS TA = 25°C ±5V RANGE ALL 8 CHANNELS Figure 19. SNR vs. Input Frequency ± 5 V Range 80 81 82 83 84 85 86 10 100 1k 10k 100k INPUT FREQUENCY (Hz) AVCC = VDRIVE = 5V INTERNAL REFERENCE fSAMPLE = 200kSPS TA = 25°C ±10V RANGE ALL 8 CHANNELS Figure 20. SNR vs. Input Frequency ± 10 V Range |
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