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AD6684 Datasheet(PDF) 6 Page - Analog Devices |
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AD6684 Datasheet(HTML) 6 Page - Analog Devices |
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6 / 107 page  AD6684 Data Sheet Rev. 0 | Page 6 of 107 AC SPECIFICATIONS AVDD1 = 0.975 V, AVDD1_SR = 0.975 V, AVDD2 = 1.8 V, AVDD3 = 2.5 V, DVDD = 0.975 V, DRVDD1 = 0.975 V, DRVDD2 = 1.8 V, SPIVDD = 1.8 V, specified maximum sampling rate, clock divider = 4, 1.8 V p-p full-scale differential input, 0.5 V internal reference, AIN = −1.0 dBFS, default SPI settings, VDR mode (input mask not triggered), unless otherwise noted. Minimum and maximum specifications are guaranteed for the full operating junction temperature (TJ) range of −40°C to +105°C. Typical specifications represent performance at TJ = 50°C (TA = 25°C). Table 2. Parameter1 Analog Input Full Scale = 1.44 V p-p Analog Input Full Scale = 1.80 V p-p Analog Input Full Scale = 2.16 V p-p Unit Min Typ Max Min Typ Max Min Typ Max ANALOG INPUT FULL SCALE 1.44 1.80 2.16 V p-p NOISE DENSITY2 −149.7 −151.5 −153.0 dBFS/Hz SIGNAL-TO-NOISE RATIO (SNR)3 VDR Mode fIN = 10 MHz 65.4 67.1 68.4 dBFS fIN = 155 MHz 65.3 64.8 67.0 68.3 dBFS fIN = 305 MHz 65.2 66.8 68.0 dBFS fIN = 450 MHz 65.0 66.6 67.8 dBFS fIN = 765 MHz 64.8 66.5 67.5 dBFS fIN = 985 MHz 64.5 66.0 66.9 dBFS 21% Bandwidth (BW) Mode (>105 MHz at 500 MSPS) fIN = 10 MHz 72.1 73.8 75.1 dBFS fIN = 155 MHz 71.8 73.5 74.8 dBFS fIN = 305 MHz 71.9 73.5 74.7 dBFS fIN = 450 MHz 71.6 73.2 74.4 dBFS fIN = 765 MHz 71.0 72.7 73.7 dBFS fIN = 985 MHz 70.6 72.1 73.0 dBFS 28% BW Mode (>135 MHz at 500 MSPS) fIN = 10 MHz 69.6 71.3 72.6 dBFS fIN = 155 MHz 69.1 70.8 72.1 dBFS fIN = 305 MHz 69.1 70.7 71.9 dBFS fIN = 450 MHz 69.4 71.0 72.2 dBFS fIN = 765 MHz 68.5 70.2 71.2 dBFS fIN = 985 MHz 68.5 70.0 70.9 dBFS SIGNAL-TO-NOISE-AND-DISTORTION RATIO (SINAD)3 fIN = 10 MHz 65.3 67.0 68.2 dBFS fIN = 155 MHz 65.2 64.5 66.8 67.9 dBFS fIN = 305 MHz 65.1 66.6 67.6 dBFS fIN = 450 MHz 65.0 66.4 67.3 dBFS fIN = 765 MHz 64.7 66.1 66.9 dBFS fIN = 985 MHz 64.2 65.5 66.2 dBFS EFFECTIVE NUMBER OF BITS (ENOB)3 fIN = 10 MHz 10.5 10.8 11.0 Bits fIN = 155 MHz 10.5 10.4 10.8 10.9 Bits fIN = 305 MHz 10.5 10.7 10.9 Bits fIN = 450 MHz 10.5 10.7 10.8 Bits fIN = 765 MHz 10.4 10.6 10.8 Bits fIN = 985 MHz 10.3 10.6 10.7 Bits |
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