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ADS4149IRGZT Datasheet(PDF) 7 Page - Texas Instruments |
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ADS4149IRGZT Datasheet(HTML) 7 Page - Texas Instruments |
7 / 79 page ADS4126, ADS4129 ADS4146, ADS4149 www.ti.com SBAS483D – NOVEMBER 2009 – REVISED APRIL 2010 ELECTRICAL CHARACTERISTICS: ADS4146/ADS4149 Typical values are at +25°C, AVDD = 1.8V, DRVDD = 1.8V, 50% clock duty cycle, –1dBFS differential analog input, 1dB gain, and DDR LVDS interface, unless otherwise noted. Minimum and maximum values are across the full temperature range: TMIN = –40°C to TMAX = +85°C, AVDD = 1.8V, and DRVDD = 1.8V. Note that after reset, the device is in 0dB gain mode. ADS4146 (160MSPS)(1) ADS4149 (250MSPS) PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT Resolution 14 14 Bits fIN = 10MHz 72.2 71.9 dBFS fIN = 70MHz 72 71.4 dBFS SNR (signal-to-noise ratio), LVDS fIN = 100MHz 71.5 71.4 dBFS fIN = 170MHz 70.5 67.5 70.6 dBFS fIN = 300MHz 69 69 dBFS fIN = 10MHz 72 71.6 dBFS fIN = 70MHz 71.8 71 dBFS SINAD (signal-to-noise and distortion ratio), fIN = 100MHz 71.4 70.9 dBFS LVDS fIN = 170MHz 70.4 66 69.4 dBFS fIN = 300MHz 68.2 67.4 dBFS fIN = 10MHz 88 87 dBc fIN = 70MHz 87 82 dBc Spurious-free dynamic range SFDR fIN = 100MHz 86 81 dBc fIN = 170MHz 82 72 84 dBc fIN = 300MHz 77 75 dBc fIN = 10MHz 86.5 85 dBc fIN = 70MHz 85 80 dBc Total harmonic distortion THD fIN = 100MHz 84 79 dBc fIN = 170MHz 81 71 80.5 dBc fIN = 300MHz 74.5 71.5 dBc fIN = 10MHz 91 89 dBc fIN = 70MHz 90 85 dBc Second-harmonic distortion HD2 fIN = 100MHz 88 84 dBc fIN = 170MHz 88 72 84 dBc fIN = 300MHz 79 75 dBc fIN = 10MHz 88 87 dBc fIN = 70MHz 87 82 dBc Third-harmonic distortion HD3 fIN = 100MHz 86 81 dBc fIN = 170MHz 82 72 82 dBc fIN = 300MHz 77 75 dBc fIN = 10MHz 91 90 dBc fIN = 70MHz 90 88 dBc Worst spur fIN = 100MHz 90 90 dBc (other than second and third harmonics) fIN = 170MHz 90 77 88 dBc fIN = 300MHz 88 88 dBc f1 = 46MHz, f2 = 50MHz, –88 –88 dBFS each tone at –7dBFS Two-tone intermodulation IMD distortion f1 = 185MHz, f2 = 190MHz, –86 –86 dBFS each tone at –7dBFS Recovery to within 1% (of final Clock Input overload recovery value) for 6dB overload with 1 1 cycles sine-wave input For 100mVPP signal on AVDD AC power-supply rejection ratio PSRR > 30 > 30 dB supply, up to 10MHz Effective number of bits ENOB fIN = 170MHz 11.5 11.3 LSBs Differential nonlinearity DNL fIN = 170MHz ±0.5 –0.95 ±0.5 LSBs Integrated nonlinearity INL fIN = 170MHz ±2 ±2 ±5 LSBs (1) The ADS4146 is a product preview device. Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): ADS4126 ADS4129 ADS4146 ADS4149 |
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