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AD7654ASTZ 数据表(PDF) 13 Page - Analog Devices |
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AD7654ASTZ 数据表(HTML) 13 Page - Analog Devices |
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13 / 28 page ![]() AD7654 Rev. B | Page 13 of 28 FREQUENCY (kHz) 100 90 70 80 10 1000 1 100 95 85 75 16.0 15.0 13.0 14.0 15.5 14.5 13.5 SNR SINAD ENOB Figure 11. SNR, SINAD, and ENOB vs. Frequency INPUT LEVEL (dB) 92 90 86 88 –40 –20 –60 –30 –50 –10 0 SNR SINAD Figure 12. SNR and SINAD vs. Input Level (Referred to Full Scale) FREQUENCY (kHz) –115 –105 10 1000 1 100 –110 90 80 60 70 85 75 65 –100 –95 –90 –85 –80 –75 –70 –65 –60 95 100 105 110 115 SFDR CROSSTALK B TO A CROSSTALK A TO B THD THIRD HARMONIC SECOND HARMONIC Figure 13. THD, Harmonics, Crosstalk, and SFDR vs. Frequency TEMPERATURE (°C) –10 –15 –55 25 –35 5 45 –8 –6 –4 –2 0 2 4 6 8 10 65 85 105 125 FULL-SCALE ERROR ZERO ERROR Figure 14. Full-Scale Error and Zero Error vs. Temperature 10 1 0.1 100 SAMPLING RATE (kSPS) 10 100 1000 1 NORMAL AVDD NORMAL DVDD IMPULSE AVDD OVDD 2.7V 0.01 0.001 0.0001 IMPULSE DVDD Figure 15. Operating Currents vs. Sample Rate CL (pF) 50 20 0 10 100 200 0 150 50 30 40 OVDD = 2.7V @ 85°C OVDD = 2.7V @ 25°C OVDD = 5V @ 85°C OVDD = 5V @ 25°C Figure 16. Typical Delay vs. Load Capacitance CL |
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