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ADS4449 Datasheet(PDF) 5 Page - Texas Instruments |
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ADS4449 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 54 page  ADS4449 www.ti.com SBAS603 – APRIL 2013 ELECTRICAL CHARACTERISTICS (continued) Typical values are at TA = +25°C, full temperature range is TMIN = –40°C to TMAX = +85°C, ADC clock frequency = 250 MHz, 50% clock duty cycle, AVDD33V = 3.3 V, AVDD = 1.9 V, DRVDD = 1.8 V, and –1-dBFS differential input, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS DYNAMIC AC CHARACTERISTICS(3) fIN = 40 MHz 71.1 dBFS fIN = 70 MHz 71 dBFS fIN = 140 MHz 69.5 dBFS SNR Signal-to-noise ratio fIN = 170 MHz 67.5 69 dBFS fIN = 220 MHz 68.5 dBFS fIN = 307 MHz 67.5 dBFS fIN = 350 MHz 67 dBFS fIN = 40 MHz 70.9 dBFS fIN = 70 MHz 70.8 dBFS fIN = 140 MHz 69.3 dBFS SINAD Signal-to-noise and distortion ratio fIN = 170 MHz 66.9 68.8 dBFS fIN = 220 MHz 68.3 dBFS fIN = 307 MHz 66.8 dBFS fIN = 350 MHz 66.3 dBFS fIN = 40 MHz 84 dBc fIN = 70 MHz 87 dBc fIN = 140 MHz 85 dBc SFDR Spurious-free dynamic range fIN = 170 MHz 78.5 86 dBc fIN = 220 MHz 84 dBc fIN = 307 MHz 78 dBc fIN = 350 MHz 77 dBc fIN = 40 MHz 83 dBc fIN = 70 MHz 84 dBc fIN = 140 MHz 82 dBc THD Total harmonic distortion fIN = 170 MHz 75 83 dBc fIN = 220 MHz 82 dBc fIN = 307 MHz 76 dBc fIN = 350 MHz 75 dBc fIN = 40 MHz 96 dBc fIN = 70 MHz 87 dBc fIN = 140 MHz 86 dBc HD2 Second-order harmonic distortion(4) fIN = 170 MHz 78.5 86 dBc fIN = 220 MHz 84 dBc fIN = 307 MHz 78 dBc fIN = 350 MHz 77 dBc fIN = 40 MHz 83 dBc fIN = 70 MHz 89 dBc fIN = 140 MHz 85 dBc HD3 Third-order harmonic distortion fIN = 170 MHz 79.5 86 dBc fIN = 220 MHz 85 dBc fIN = 307 MHz 80 dBc fIN = 350 MHz 78 dBc (3) Phase and amplitude imbalances onboard must be minimized to obtain good performance. (4) The minimum value across temperature is ensured by bench characterization. Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: ADS4449 |
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