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AD7329 датащи(PDF) 12 Page - Analog Devices |
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AD7329 датащи(HTML) 12 Page - Analog Devices |
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12 / 40 page ![]() AD7329 Rev. 0 | Page 12 of 40 –50 –95 10 1000 ANALOG INPUT FREQUENCY (kHz) ±2.5V RANGE 0V TO +10V RANGE ±10V RANGE ±5V RANGE VCC = VDRIVE = 5V VDD = 12V, VSS = –12V TA = 25°C fS = 1MSPS INTERNAL REFERENCE AD8021 BETWEEN MUXOUT+ AND ADCIN+ PINS 100 –55 –60 –65 –70 –75 –80 –85 –90 Figure 10. THD vs. Analog Input Frequency for Single-Ended Mode (SE) at 5 V VCC –50 –95 10 1000 ANALOG INPUT FREQUENCY (kHz) ±2.5V RANGE 0V TO +10V RANGE ±10V RANGE ±5V RANGE VCC = VDRIVE = 5V VDD = 12V, VSS = –12V TA = 25°C fS = 1MSPS INTERNAL REFERENCE AD8021 BETWEEN MUXOUT AND ADCIN PINS 100 –55 –60 –65 –70 –75 –80 –85 –90 Figure 11. THD vs. Analog Input Frequency for True Differential Mode (Diff) at 5 V VCC 74 66 10 1000 ANALOG INPUT FREQUENCY (kHz) ±2.5V RANGE 0V TO +10V RANGE ±10V RANGE ±5V RANGE VCC = VDRIVE = 5V VDD = 12V, VSS = –12V TA = 25°C fS = 1MSPS INTERNAL REFERENCE AD8021 BETWEEN MUXOUT+ AND ADCIN+ PINS 73 72 71 70 69 68 67 100 Figure 12. SINAD vs. Analog Input Frequency for Single-Ended Mode (SE) at 5 V VCC 75 80 50 10 1000 ANALOG INPUT FREQUENCY (kHz) ±2.5V RANGE 0V TO +10V RANGE ±10V RANGE ±5V RANGE VCC = VDRIVE = 5V VDD = 12V, VSS = –12V TA = 25°C fS = 1MSPS INTERNAL REFERENCE AD8021 BETWEEN MUXOUT AND ADCIN PINS 100 70 65 60 55 Figure 13. SINAD vs. Analog Input Frequency for True Differential Mode (Diff) at 5 V VCC –50 –100 0 600 FREQUENCY OF INPUT NOISE (kHz) 100 200 300 400 500 VDD = 12V, VSS = –12V VCC = VDRIVE = 5V SINGLE-ENDED MODE 50kHz ON SELECTED CHANNEL fS = 1MSPS TA = 25°C WIRE LINK WITH AD8021 –55 –60 –65 –70 –75 –80 –85 –90 –95 Figure 14. Channel-to-Channel Isolation with and Without AD8021 Between the MUXOUT+ and ADCIN + Pins 10k 0 –2 CODE 9k 8k 7k 6k 5k 4k 3k 2k 1k –1 012 0 228 9469 303 0 VCC = 5V VDD = 12V, VSS = –12V RANGE = ±10V 10k SAMPLES TA = 25°C Figure 15. Histogram of Codes, True Differential Mode |
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