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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 / 36 page ![]() AD7609 Data Sheet Rev. A | Page 16 of 36 CODE –1.0 0 1.0 0.8 0.6 0.4 0.2 –0.2 –0.4 –0.6 –0.8 ±5V RANGE AVCC, VDRIVE = 5V TA = 25°C fSAMPLE = 200 kSPS WCP INL = 0.45 LSB WCN INL = –0.38 LSB Figure 14. Typical DNL, ±5 V Range 80 60 40 20 0 –20 –40 –60 –40 –25 –10 5 20 35 50 65 80 –80 TEMPERATURE (°C) 200kSPS AVCC, VDRIVE = 5V EXTERNAL REFERENCE ±5V RANGE ±10V RANGE Figure 15. NFS Error vs. Temperature 80 60 40 20 0 –20 –40 –60 –40 –25 –10 5 20 35 50 65 80 –80 TEMPERATURE (°C) 200kSPS AVCC, VDRIVE = 5V EXTERNAL REFERENCE ±5V RANGE ±10V RANGE Figure 16. PFS Error vs. Temperature 40 –40 –25 –10 5 20 35 50 65 80 –40 –32 –24 –16 –8 0 8 16 24 32 TEMPERATURE (°C) ±10V RANGE AVCC, VDRIVE = 5V EXTERNAL REFERENCE PFS ERROR NFS ERROR Figure 17. NFS and PFS Error Matching 10 8 6 4 2 0 0120k 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 V– INPUT ±10V AND ±5V RANGE Figure 18. PFS and NFS Error vs. Source Resistance 80 85 90 95 100 105 10 100 10k 10k 100k INPUT FREQUENCY (Hz) NO OS OS × 2 OS × 4 OS × 8 OS × 16 OS × 32 OS × 64 AVCC,VDRIVE = 5V fSAMPLE CHANGES WITH OS RATE TA = 25°C INTERNAL REFERENCE ±10V RANGE Figure 19. SNR vs. Input Frequency, ±10 V Range |
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