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AD9681-125EBZ Datasheet(PDF) 5 Page - Analog Devices |
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AD9681-125EBZ Datasheet(HTML) 5 Page - Analog Devices |
5 / 40 page Data Sheet AD9681 Rev. A | Page 5 of 40 AC SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1.8 V, 2 V p-p differential input, 1.0 V internal reference, AIN = −1.0 dBFS, unless otherwise noted. Table 2. Parameter1 Temp Min Typ Max Unit SIGNAL-TO-NOISE RATIO (SNR) fIN = 9.7 MHz 25°C 74.8 dBFS fIN = 19.7 MHz 25°C 74.7 dBFS fIN = 69.5 MHz Full 72.6 73.9 dBFS fIN = 139.5 MHz 25°C 71.5 dBFS fIN = 201 MHz 25°C 69.6 dBFS fIN = 301 MHz 25°C 66.6 dBFS SIGNAL-TO-NOISE AND DISTORTION RATIO (SINAD) fIN = 9.7 MHz 25°C 74.7 dBFS fIN = 19.7 MHz 25°C 74.7 dBFS fIN = 69.5 MHz Full 72.3 73.8 dBFS fIN = 139.5 MHz 25°C 71.4 dBFS fIN = 201 MHz 25°C 69.3 dBFS fIN = 301 MHz 25°C 65.8 dBFS EFFECTIVE NUMBER OF BITS (ENOB) fIN = 9.7 MHz 25°C 12.1 Bits fIN = 19.7 MHz 25°C 12.1 Bits fIN = 69.5 MHz Full 11.7 12.0 Bits fIN = 139.5 MHz 25°C 11.6 Bits fIN = 201 MHz 25°C 11.2 Bits fIN = 301 MHz 25°C 10.6 Bits SPURIOUS-FREE DYNAMIC RANGE (SFDR) fIN = 9.7 MHz 25°C 94 dBc fIN = 19.7 MHz 25°C 94 dBc fIN = 69.5 MHz Full 81 90 dBc fIN = 139.5 MHz 25°C 87 dBc fIN = 201 MHz 25°C 83 dBc fIN = 301 MHz 25°C 73 dBc WORST HARMONIC (SECOND OR THIRD) fIN = 9.7 MHz 25°C −94 dBc fIN = 19.7 MHz 25°C −94 dBc fIN = 69.5 MHz Full −90 −81 dBc fIN = 139.5 MHz 25°C −87 dBc fIN = 201 MHz 25°C −83 dBc fIN = 301 MHz 25°C −73 dBc WORST OTHER (EXCLUDING SECOND OR THIRD) fIN = 9.7 MHz 25°C −98 dBc fIN = 19.7 MHz 25°C −94 dBc fIN = 69.5 MHz Full −96 −84 dBc fIN = 139.5 MHz 25°C −90 dBc fIN = 201 MHz 25°C −85 dBc fIN = 301 MHz 25°C −75 dBc TWO-TONE INTERMODULATION DISTORTION (IMD)—AIN1 AND AIN2 = −7.0 dBFS fIN1 = 70 MHz, fIN2 = 72.5 MHz 25°C 94 dBc CROSSTALK, WORST ADJACENT CHANNEL2 25°C −83 dB Crosstalk, Worst Adjacent Channel Overrange Condition3 25°C −79 dB ANALOG INPUT BANDWIDTH, FULL POWER 25°C 650 MHz 1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for definitions and for details on how these tests were completed. 2 Crosstalk is measured at 70 MHz, with −1.0 dBFS analog input on one channel and no input on the adjacent channel. 3 Overrange condition is defined as 3 dB above input full scale. |
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