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AD6657EBZ 数据表(PDF) 5 Page - Analog Devices |
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AD6657EBZ 数据表(HTML) 5 Page - Analog Devices |
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5 / 32 page  AD6657 Rev. 0 | Page 5 of 32 AC SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1.8 V, fS = 185 MSPS, 1.75 V p-p differential input, VIN = −1.0 dBFS differential input, and default SPI, unless otherwise noted. Table 2. Parameter1 Temperature Min Typ Max Unit SIGNAL-TO-NOISE-RATIO (SNR)—NSR DISABLED fIN = 30 MHz 25°C 66.5 dBFS fIN = 70 MHz 25°C 66.5 dBFS fIN = 170 MHz Full 65.7 66.1 dBFS fIN = 250 MHz 25°C 65.5 dBFS SIGNAL-TO-NOISE-RATIO (SNR)—NSR ENABLED 22% BW Mode fIN = 70 MHz 25°C 75.5 dBFS fIN = 170 MHz Full 72.8 74.4 dBFS fIN = 230 MHz 25°C 72.8 dBFS 33% BW Mode fIN = 70 MHz 25°C 73.7 dBFS fIN = 170 MHz Full 71.0 72.6 dBFS fIN = 230 MHz 25°C 71.0 dBFS SIGNAL-TO-NOISE-AND DISTORTION (SINAD) fIN = 30 MHz 25°C 65.5 dBFS fIN = 70 MHz 25°C 66.3 dBFS fIN = 170 MHz Full 64.1 65.6 dBFS fIN = 250 MHz 25°C 64.3 dBFS EFFECTIVE NUMBER OF BITS (ENOB) fIN = 30 MHz 25°C 10.6 Bits fIN = 70 MHz 25°C 10.7 Bits fIN = 170 MHz Full 10.3 10.6 Bits fIN = 250 MHz 25°C 10.3 Bits WORST SECOND OR THIRD HARMONIC fIN = 30 MHz 25°C −90 dBc fIN = 70 MHz 25°C −83 dBc fIN = 170 MHz Full −72 −78 dBc fIN = 250 MHz 25°C −80 dBc SPURIOUS-FREE DYNAMIC RANGE (SFDR) fIN = 30 MHz 25°C 90 dBc fIN = 70 MHz 25°C 83 dBc fIN = 170 MHz Full 72 78 dBc fIN = 250 MHz 25°C 80 dBc WORST OTHER HARMONIC (FOURTH THROUGH EIGHTH) fIN = 30 MHz 25°C −100 dBc fIN = 70 MHz 25°C −96 dBc fIN = 170 MHz Full −82 −90 dBc fIN = 250 MHz 25°C −95 dBc TWO-TONE SFDR (−7 dBFS) fIN1 = 169 MHz, fIN2 = 172 MHz 25°C 82 dBc CROSSTALK2 Full 95 dB ANALOG INPUT BANDWIDTH 25°C 800 MHz 1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions. 2 Crosstalk is measured at 155 MHz with −1 dBFS on one channel and no input on the alternate channel. |
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