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AD6643BCPZRL7-250 Folha de dados(PDF) 5 Page - Analog Devices |
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AD6643BCPZRL7-250 Folha de dados(HTML) 5 Page - Analog Devices |
5 / 40 page Data Sheet AD6643 Rev. C | Page 5 of 40 ADC AC SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.75 V p-p full-scale input range, default SPI, unless otherwise noted. Table 2. AD6643-200 AD6643-250 Parameter1 Temperature Min Typ Max Min Typ Max Unit SIGNAL-TO-NOISE-RATIO (SNR) NSR Disabled fIN = 30 MHz 25°C 66.6 66.4 dBFS fIN = 90 MHz 25°C 66.5 66.2 dBFS Full 66.2 dBFS fIN = 140 MHz 25°C 66.4 66.1 dBFS fIN = 185 MHz 25°C 66.2 65.9 dBFS Full 65.3 dBFS fIN = 220 MHz 25°C 66.0 65.6 dBFS NSR Enabled 22% BW Mode fIN = 30 MHz 25°C 76.1 74.8 dBFS fIN = 90 MHz 25°C 76.1 74.5 dBFS Full 74.5 dBFS fIN = 140 MHz 25°C 75.5 74.2 dBFS fIN = 185 MHz 25°C 74.7 73.7 dBFS Full 72.6 dBFS fIN = 220 MHz 25°C 74.2 73.4 dBFS 33% BW Mode fIN = 30 MHz 25°C 76.1 72.3 dBFS fIN = 90 MHz 25°C 73.6 72.0 dBFS Full 72.0 dBFS fIN = 140 MHz 25°C 73.1 71.7 dBFS fIN = 185 MHz 25°C 72.6 71.2 dBFS Full 70.1 dBFS fIN = 220 MHz 25°C 72.1 70.9 dBFS SIGNAL-TO-NOISE-AND-DISTORTION (SINAD) fIN = 30 MHz 25°C 65.6 65.4 dBFS fIN = 90 MHz 25°C 65.5 65.2 dBFS Full 65.1 dBFS fIN = 140 MHz 25°C 65.3 65.1 dBFS fIN = 185 MHz 25°C 65.1 64.9 dBFS Full 64.3 dBFS fIN = 220 MHz 25°C 64.9 64.6 dBFS WORST SECOND OR THIRD HARMONIC fIN = 30 MHz 25°C −92 −90 dBc fIN = 90 MHz 25°C −91 −88 dBc Full −80 dBc fIN = 140 MHz 25°C −88 −86 dBc fIN = 185 MHz 25°C −88 −85 dBc Full −80 dBc fIN = 220 MHz 25°C −84 −85 dBc |
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