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AD9253 Datasheet(PDF) 5 Page - Analog Devices |
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AD9253 Datasheet(HTML) 5 Page - Analog Devices |
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5 / 41 page  AD9253 Data Sheet Rev. B | Page 4 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 AD9253-80 AD9253-105 AD9253-125 Unit Min Typ Max Min Typ Max Min Typ Max SIGNAL-TO-NOISE RATIO (SNR) fIN = 9.7 MHz 25°C 75.4 75.1 75.3 dBFS fIN = 30.5 MHz 25°C 74.9 75.0 75.2 dBFS fIN = 70 MHz Full 72.2 74.7 72.2 74.4 73 74.2 dBFS fIN = 140 MHz 25°C 72.3 73.1 72.2 dBFS fIN = 200 MHz 25°C 70.7 71.2 70.7 dBFS SIGNAL-TO-NOISE-AND-DISTORTION RATIO (SINAD) fIN = 9.7 MHz 25°C 75.3 75.0 75.2 dBFS fIN = 30.5 MHz 25°C 74.8 74.9 75.1 dBFS fIN = 70 MHz Full 71.8 74.6 70.8 74.2 72.6 74.1 dBFS fIN = 140 MHz 25°C 72.1 72.8 71.9 dBFS fIN = 200 MHz 25°C 70.5 70.8 70.4 dBFS EFFECTIVE NUMBER OF BITS (ENOB) fIN = 9.7 MHz 25°C 12.2 12.1 12.2 Bits fIN = 30.5 MHz 25°C 12.1 12.1 12.1 Bits fIN = 70 MHz Full 11.6 11.9 11.5 12.0 11.8 12.0 Bits fIN = 140 MHz 25°C 11.6 11.8 11.6 Bits fIN = 200 MHz 25°C 11.5 11.5 11.4 Bits SPURIOUS-FREE DYNAMIC RANGE (SFDR) fIN = 9.7 MHz 25°C 98 98 98 dBc fIN = 30.5 MHz 25°C 93 92 92 dBc fIN = 70 MHz Full 77 94 75 89 77 90 dBc fIN = 140 MHz 25°C 85 85 85 dBc fIN = 200 MHz 25°C 84 82 83 dBc WORST HARMONIC (SECOND OR THIRD) fIN = 9.7 MHz 25°C −98 −98 −98 dBc fIN = 30.5 MHz 25°C −93 −92 −92 dBc fIN = 70 MHz Full −94 −77 −89 −75 −90 −77 dBc fIN = 140 MHz 25°C −85 −85 −85 dBc fIN = 200 MHz 25°C −84 −82 −83 dBc WORST OTHER (EXCLUDING SECOND OR THIRD) fIN = 9.7 MHz 25°C −99 −98 −100 dBc fIN = 30.5 MHz 25°C −98 −98 −99 dBc fIN = 70 MHz Full −97 −77 −94 −77 −94 −84 dBc fIN = 140 MHz 25°C −97 −97 −95 dBc fIN = 200 MHz 25°C −94 −91 −91 dBc TWO-TONE INTERMODULATION DISTORTION (IMD)—AIN1 AND AIN2 = −7.0 dBFS fIN1 = 70.5 MHz, fIN2 = 72.5 MHz 25°C 90 88 86 dBc CROSSTALK2 Full −95 −95 −95 dB CROSSTALK (OVERRANGE CONDITION)3 25°C −89 −89 −89 dB POWER SUPPLY REJECTION RATIO (PSRR)1, 4 AVDD 25°C 48 48 48 dB DRVDD 25°C 75 75 75 dB ANALOG INPUT BANDWIDTH, FULL POWER 25°C 650 650 650 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 specified as being 3 dB above the full-scale input range. 4 PSRR is measured by injecting a sinusoidal signal at 10 MHz to the power supply pin and measuring the output spur on the FFT. PSRR is calculated as the ratio of the amplitudes of the spur voltage over the pin voltage, expressed in decibels. |
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