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ADC3222IRGZT Datasheet(PDF) 11 Page - Texas Instruments |
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ADC3222IRGZT Datasheet(HTML) 11 Page - Texas Instruments |
11 / 77 page 11 ADC3221, ADC3222, ADC3223, ADC3224 www.ti.com SBAS672B – JULY 2014 – REVISED MARCH 2016 Product Folder Links: ADC3221 ADC3222 ADC3223 ADC3224 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated (1) Reported from a 1-MHz offset. 7.9 AC Performance: ADC3222 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 = 50 MSPS, 50% clock duty cycle, AVDD = DVDD = 1.8 V, and –1-dBFS differential input (unless otherwise noted) PARAMETER TEST CONDITIONS ADC3222 (fS = 50 MSPS) UNIT DITHER ON DITHER OFF MIN TYP MAX MIN TYP MAX DYNAMIC AC CHARACTERISTICS SNR Signal-to-noise ratio (from 1-MHz offset) fIN = 10 MHz 70.9 71.1 dBFS fIN = 20 MHz 68.5 70.9 71.1 fIN = 70 MHz 70.7 70.9 fIN = 100 MHz 70.5 70.7 fIN = 170 MHz 70 70.1 fIN = 230 MHz 69.3 69.6 Signal-to-noise ratio (full Nyquist band) fIN = 10 MHz 70.3 70.5 fIN = 20 MHz 70.1 70.3 fIN = 70 MHz 70.1 70.3 fIN = 100 MHz 69.9 70.2 fIN = 170 MHz 69.5 69.5 fIN = 230 MHz 68.7 69 NSD(1) Noise spectral density (averaged across Nyquist zone) fIN = 10 MHz –144.9 –145.1 dBFS/Hz fIN = 20 MHz –144.9 –142.5 –145.1 fIN = 70 MHz –144.7 –144.9 fIN = 100 MHz –144.5 –144.7 fIN = 170 MHz –144.0 –144.1 fIN = 230 MHz –143.3 –143.6 SINAD(1) Signal-to-noise and distortion ratio fIN = 10 MHz 70.8 71 dBFS fIN = 20 MHz 68 70.8 71 fIN = 70 MHz 70.6 70.8 fIN = 100 MHz 70.4 70.6 fIN = 170 MHz 69.8 69.9 fIN = 230 MHz 69 69.1 ENOB(1) Effective number of bits fIN = 10 MHz 11.5 11.5 Bits fIN = 20 MHz 11 11.5 11.5 fIN = 70 MHz 11.4 11.5 fIN = 100 MHz 11.4 11.4 fIN = 170 MHz 11.3 11.3 fIN = 230 MHz 11.2 11.2 SFDR Spurious-free dynamic range fIN = 10 MHz 89 95 dBc fIN = 20 MHz 82 95 91 fIN = 70 MHz 95 93 fIN = 100 MHz 88 86 fIN = 170 MHz 85 83 fIN = 230 MHz 82 81 |
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