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ADS5281IPFP Datasheet(PDF) 26 Page - Texas Instruments |
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ADS5281IPFP Datasheet(HTML) 26 Page - Texas Instruments |
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26 / 44 page ![]() www.ti.com 0 - 20 - 40 - 60 - 80 - 100 - 120 - 140 - 180 InputFrequency(MHz) 0 33 20 15 10 5 - 160 SFDR=86.2dBc SNR=70.5dBFS SNR(0MHzto1MHz)=86.1dBFS SINAD=70.4dBFS THD=85.4dBc 25 30 92 87 82 77 72 67 InputFrequency(MHz) 5 30 20 15 10 25 SNR(dBFS) SFDR(dBc) f =40MHz S 92 87 82 77 72 67 InputFrequency(MHz) 5 30 20 15 10 25 SNR(dBFS) SFDR(dBc) f =50MHz S 97 92 87 82 77 72 67 InputFrequency(MHz) 5 30 20 15 10 25 SNR(dBFS) SFDR(dBc) f =65MHz S 95 90 85 80 75 70 65 60 DigitalGain(dB) 0 12 6 4 2 8 SNR(dBFS) SFDR(dBc) f =65MHz f =10MHz S IN 10 95 90 85 80 75 70 65 60 AVDD(V) 3.0 3.6 3.3 3.2 3.1 3.4 SNR(dBFS) SFDR(dBc) f =65MHz f =10MHz S IN 3.5 ADS5281 ADS5282 SBAS397H – DECEMBER 2006 – REVISED MARCH 2008 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, AVDD = +3.3V, LVDD = 1.8V, clock frequency = 65MSPS, differential clock mode, 1VPP clock amplitude, 50% clock duty cycle, input frequency = 10MHz, –1dBFS differential analog input, 0dB digital gain setting, 1.5V analog input common-mode, low-frequency noise suppression = off, internal reference mode, ISET resistor = 56.2kΩ, and LVDS buffer current setting = 3.5mA, unless otherwise noted. SPECTRAL PERFORMANCE, LOW-FREQUENCY NOISE SUPPRESSION MODE ENABLED (fS = 65MHz, fIN = 25MHz) DYNAMIC PERFORMANCE vs INPUT FREQUENCY Figure 10. Figure 11. DYNAMIC PERFORMANCE vs INPUT FREQUENCY DYNAMIC PERFORMANCE vs INPUT FREQUENCY Figure 12. Figure 13. DYNAMIC PERFORMANCE vs DIGITAL GAIN DYNAMIC PERFORMANCE vs AVDD Figure 14. Figure 15. 26 Submit Documentation Feedback Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): ADS5281 ADS5282 |
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