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ADS5281IRGCRG4 Arkusz danych(PDF) 6 Page - Texas Instruments |
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ADS5281IRGCRG4 Arkusz danych(HTML) 6 Page - Texas Instruments |
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6 / 44 page  www.ti.com ELECTRICAL CHARACTERISTICS (BY DEVICE) (1) ADS5281 ADS5282 SBAS397H – DECEMBER 2006 – REVISED MARCH 2008 Typical values at +25 °C. Minimum and maximum values are measured across the specified temperature range of T MIN = –40 °C to T MAX = +85°C, AVDD = 3.3V, LVDD = 1.8V, clock frequency = 10MSPS to 65MSPS, 50% clock duty cycle, –1dBFS differential analog input, internal reference mode, ISET resistor = 56.2kΩ, and LVDS buffer current setting = 3.5mA, unless otherwise noted. ADS5281 ADS5281 ADS5282 HTQFP-80 QFN-64 QFN-64 50MSPS 50MSPS 65MSPS PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNIT DC ACCURACY No missing codes Assured Assured Assured DNL Differential nonlinearity –0.75 ±0.25 +0.75 –0.75 ±0.25 +0.75 –0.9 ±0.3 +0.9 LSB INL Integral nonlinearity –1.5 ±0.7 +1.5 –1.5 ±0.7 +1.5 –1.7 ±0.7 +1.7 LSB POWER SUPPLY—INTERNAL REFERENCE MODE IAVDD Analog supply current 119 145 119 145 145 170 mA ILVDD Digital current Zero input to all channels 76 95 76 95 89 102 mA Total power 530 649.5 530 649.5 639 744.6 mW Obtained on powering down one Incremental power saving 51 51 63 mW channel at a time POWER SUPPLY—EXTERNAL REFERENCE MODE IAVDD Analog supply current 113 113 138 mA ILVDD Digital current Zero input to all channels 76 76 89 mA Total power 510 510 616 mW Obtained on powering down one Incremental power saving 50 50 61 mW channel at a time EXTERNAL REFERENCE LOADING Current drawn by the eight ADCs from the external reference Switching current 2.5 2.5 3.5 mA voltages; sourcing for REFT, sinking for REFB. DYNAMIC CHARACTERISTICS fIN = 5MHz, single-ended clock 74 85 74 85 72 85 dBc SFDR Spurious-free dynamic range fIN = 30MHz, differential clock 80 80 80 dBc fIN = 5MHz, single-ended clock 74 85 74 85 72 85 dBc HD2 Magnitude of second harmonic fIN = 30MHz, differential clock 82 82 82 dBc fIN = 5MHz, single-ended clock 74 85 74 85 72 85 dBc HD3 Magnitude of third harmonic fIN = 30MHz, differential clock 80 80 80 dBc fIN = 5MHz, single-ended clock 71 80 71 80 70 80 THD Total harmonic distortion fIN = 30MHz, differential clock 78 78 78 fIN = 5MHz, single-ended clock 68.3 70 68.3 70 68.3 70 dBFS SNR Signal-to-noise ratio fIN = 30MHz, differential clock 69.8 69.8 69.8 dBFS fIN = 5MHz, single-ended clock 67.7 69.7 67.7 69.7 67.3 69.7 dBFS SINAD Signal-to-noise and distortion fIN = 30MHz, differential clock 69.5 69.5 69.5 dBFS (1) All characteristics are specific to each grade. 6 Submit Documentation Feedback Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): ADS5281 ADS5282 |
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