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AD9642 Datasheet(PDF) 5 Page - Analog Devices |
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AD9642 Datasheet(HTML) 5 Page - Analog Devices |
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5 / 29 page  AD9642 Data Sheet 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, unless otherwise noted. Table 2. AD9642-170 AD9642-210 AD9642-250 Parameter1 Temperature Min Typ Max Min Typ Max Min Typ Max Unit SIGNAL-TO-NOISE RATIO (SNR) fIN = 30 MHz 25°C 72.5 72.4 72.2 dBFS fIN = 90 MHz 25°C 72.2 72.2 72.0 dBFS Full 70.7 70.0 dBFS fIN = 140 MHz 25°C 71.8 71.6 71.8 dBFS fIN = 185 MHz 25°C 71.2 71.5 71.4 dBFS Full 68.6 dBFS fIN = 220 MHz 25°C 70.7 71.0 70.9 dBFS SIGNAL-TO-NOISE AND DISTORTION (SINAD) fIN = 30 MHz 25°C 71.5 71.5 71.2 dBFS fIN = 90 MHz 25°C 71.3 71.3 71.0 dBFS Full 69.6 68.7 dBFS fIN = 140 MHz 25°C 70.8 70.6 70.9 dBFS fIN = 185 MHz 25°C 70.3 70.5 70.4 dBFS Full 67.5 dBFS fIN = 220 MHz 25°C 69.7 70.1 70.0 dBFS EFFECTIVE NUMBER OF BITS (ENOB) fIN = 30 MHz 25°C 11.6 11.6 11.5 Bits fIN = 90 MHz 25°C 11.6 11.6 11.5 Bits fIN = 140 MHz 25°C 11.5 11.4 11.5 Bits fIN = 185 MHz 25°C 11.4 11.4 11.4 Bits fIN = 220 MHz 25°C 11.3 11.3 11.3 Bits WORST SECOND OR THIRD HARMONIC fIN = 30 MHz 25°C −96 −96 −90 dBc fIN = 90 MHz 25°C −95 −92 −89 dBc Full −82 −79 dBc fIN = 140 MHz 25°C −97 −94 −90 dBc fIN = 185 MHz 25°C −86 −95 −86 dBc Full −80 dBc fIN = 220 MHz 25°C −84 −84 −86 dBc SPURIOUS-FREE DYNAMIC RANGE (SFDR) fIN = 30 MHz 25°C 96 96 90 dBc fIN = 90 MHz 25°C 95 92 89 dBc Full 82 79 dBc fIN = 140 MHz 25°C 97 94 90 dBc fIN = 185 MHz 25°C 86 95 86 dBc Full 80 dBc fIN = 220 MHz 25°C 84 84 86 dBc WORST OTHER (HARMONIC OR SPUR) fIN = 30 MHz 25°C −99 −98 −95 dBc fIN = 90 MHz 25°C −95 −97 −98 dBc Full −87 −81 dBc fIN = 140 MHz 25°C −98 −96 −97 dBc fIN = 185 MHz 25°C −96 −97 −96 dBc Full −81 dBc fIN = 220 MHz 25°C −97 −94 −95 dBc Rev. B | Page 4 of 28 |
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