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ADC3421 数据表(PDF) 12 Page - Texas Instruments |
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ADC3421 数据表(HTML) 12 Page - Texas Instruments |
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12 / 80 page  ADC3421, ADC3422, ADC3423, ADC3424 SBAS673A – JULY 2014 – REVISED OCTOBER 2015 www.ti.com 7.10 AC Performance: ADC3423 Typical values are over the operating free-air temperature range, at TA = 25°C, full temperature range is TMIN = –40°C to TMAX = 85°C, ADC sampling rate = 80 MSPS, 50% clock duty cycle, AVDD = DVDD = 1.8 V, and –1-dBFS differential input, unless otherwise noted. ADC3423 (fS = 80 MSPS) DITHER ON DITHER OFF PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT fIN = 10 MHz 70.7 70.9 fIN = 70 MHz 68.7 70.5 70.7 Signal-to-noise ratio fIN = 100 MHz 70.3 70.5 (from 1-MHz offset) fIN = 170 MHz 70.1 70.3 fIN = 230 MHz 69.6 69.9 SNR dBFS fIN = 10 MHz 70.3 70.5 fIN = 70 MHz 70.1 70.4 Signal-to-noise ratio fIN = 100 MHz 69.9 70.2 (full Nyquist band) fIN = 170 MHz 69.7 69.9 fIN = 230 MHz 69.3 69.6 fIN = 10 MHz –146.6 –146.8 fIN = 70 MHz –146.4 –144.6 –146.6 Noise spectral density NSD(1) fIN = 100 MHz –146.2 –146.4 dBFS/Hz (averaged across Nyquist zone) fIN = 170 MHz –146.0 –146.2 fIN = 230 MHz –145.5 –145.8 fIN = 10 MHz 70.7 70.8 fIN = 70 MHz 67.7 70.3 70.4 Signal-to-noise and distortion SINAD(1) fIN = 100 MHz 70.4 70.7 dBFS ratio fIN = 170 MHz 70 70.2 fIN = 230 MHz 69.5 69.7 fIN = 10 MHz 11.5 11.5 fIN = 70 MHz 11 11.4 11.4 ENOB(1) Effective number of bits fIN = 100 MHz 11.4 11.5 Bits fIN = 170 MHz 11.3 11.4 fIN = 230 MHz 11.3 11.3 fIN = 10 MHz 90 90 fIN = 70 MHz 81 91 90 SFDR Spurious-free dynamic range fIN = 100 MHz 93 93 dBc fIN = 170 MHz 88 86 fIN = 230 MHz 87 85 (1) Reported from a 1-MHz offset. 12 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: ADC3421 ADC3422 ADC3423 ADC3424 |
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