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ADS1205IRGER Datasheet(PDF) 10 Page - Texas Instruments |
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ADS1205IRGER Datasheet(HTML) 10 Page - Texas Instruments |
10 / 22 page ADS1205 SBAS312A − JANUARY 2005 − REVISED APRIL 2005 www.ti.com 10 TYPICAL CHARACTERISTICS (continued) AVDD = 5V, BVDD = 3V, CH x+ = 0.5V to 4.5V, CH x− = 2.5V, REFIN = REFOUT = internal +2.5V, CLKIN = 20MHz, and 16-bit Sinc3 filter with decimation by 256, unless otherwise noted. Figure 14 SPURIOUS FREE DYNAMIC RANGE AND TOTAL HARMONIC DISTORTION vs TEMPERATURE (CLKIN = 20MHz) 60 −40 −20 20 40 0 THD SFDR 80 100 Temperature ( _C) 105 103 101 99 97 95 93 91 89 87 85 −105 −103 −101 −99 −97 −95 −93 −91 −89 −87 −85 4V PP 5kHz Figure 15 SPURIOUS FREE DYNAMIC RANGE AND TOTAL HARMONIC DISTORTION vs TEMPERATURE (CLKIN = 32MHz) 60 −40 −20 20 40 0 THD SFDR 80 100 Temperature ( _C) 105 103 101 99 97 95 93 91 89 87 85 −105 −103 −101 −99 −97 −95 −93 −91 −89 −87 −85 4V PP 5kHz Figure 16 SIGNAL−TO−NOISE AND DISTORTION AND SIGNAL−TO−NOISE RATIO vs INPUT FREQUENCY (CLKIN = 20MHz) 100 1k 100k Input Frequency (kHz) 100 98 96 94 92 90 88 86 84 82 80 SINAD SNR OSR = 256 Sinc3 Filter Figure 17 SIGNAL−TO−NOISE AND DISTORTION AND SIGNAL−TO−NOISE RATIO vs INPUT FREQUENCY (CLKIN = 32MHz) 100 1k 10k 100k Input Frequency (kHz) 100 95 90 85 80 SNR SINAD OSR = 256 Sinc3 Filter Figure 18 SPURIOUS FREE DYNAMIC RANGE AND TOTAL HARMONIC DISTORTION vs INPUT FREQUENCY (CLKIN = 20MHz) 10k 100 1k 100k Input Frequency (Hz) 120 110 100 90 80 −120 −110 −100 −90 −80 THD SFDR OSR = 256 Sinc3 Filter Figure 19 SPURIOUS FREE DYNAMIC RANGE AND TOTAL HARMONIC DISTORTION vs INPUT FREQUENCY (CLKIN = 32MHz) 10k 100 1k 100k Input Frequency (Hz) 120 110 100 90 80 −120 −110 −100 −90 −80 THD SFDR OSR = 256 Sinc3 Filter |
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