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ASD1194 数据表(PDF) 13 Page - Texas Instruments |
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ASD1194 数据表(HTML) 13 Page - Texas Instruments |
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13 / 76 page ![]() - 1 1 Input(NormalizedtoFull-ScaleRange) 0 1 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1 - - - - - 0.2 0.4 0.6 0.8 - 0.2 - 0.4 - 0.6 - 0.8 +70 C ° +50 C ° +25 C ° 0 C ° - 1 1 Input(NormalizedtoFull-Scale) 0 1 0.8 0.6 0.4 0.2 0 0.2 0.4 0.6 0.8 1 - - - - - 0.2 0.4 0.6 0.8 - 0.2 - 0.4 - 0.6 - 0.8 PGA1 PGA2 PGA3 PGA4 PGA6 PGA8 PGA12 0 4000 Frequency(Hz) 2000 0 20 40 60 80 100 120 140 160 180 200 - - - - - - - - - - 1500 1000 500 2500 3000 3500 PGAGain=6 THD= 92dB SNR=74dB f =8kSPS - DR 0 250 Frequency(Hz) 200 0 20 40 60 80 100 120 140 160 180 - - - - - - - - - 150 100 50 PGAGain=6 THD= 96dB SNR=96.7dB f =500SPS - DR 10 1k Frequency(Hz) 100 - - - - - - - - - 125 120 115 110 105 100 95 90 85 80 - PGA=1 PGA=2 PGA=3 PGA=4 PGA=6 PGA=8 PGA=12 10 1k Frequency(Hz) 100 f =4kSPS DR - - - - - - - 110 105 100 95 90 85 80 75 - PGA=1 PGA=2 PGA=3 PGA=4 PGA=6 PGA=8 PGA=12 ADS1194, ADS1196 ADS1198 www.ti.com SBAS471C – APRIL 2010 – REVISED NOVEMBER 2011 TYPICAL CHARACTERISTICS All plots at TA = +25°C, AVDD = 3V, AVSS = 0V, DVDD = 1.8V, internal VREFP = 2.4V, VREFN = AVSS, external clock = 2.048MHz, data rate = 500SPS, and gain = 6, unless otherwise noted. INL vs TEMPERATURE INL vs PGA GAIN Figure 3. Figure 4. FFT PLOT FFT PLOT Figure 5. Figure 6. CMRR vs FREQUENCY THD vs FREQUENCY Figure 7. Figure 8. Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback 13 Product Folder Link(s): ADS1194 ADS1196 ADS1198 |
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