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ADS1258IPHPREP датащи(PDF) 13 Page - Texas Instruments |
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ADS1258IPHPREP датащи(HTML) 13 Page - Texas Instruments |
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13 / 59 page ![]() 220 210 200 190 180 170 160 150 140 130 120 -40 Temperature( C) ° 120 -20 0 20 60 40 100 80 OnlyADS1258 TemperatureForced; TestPCBinFree-Air ADS1258andTestPCB TemperaturesForcedTogether Temperature Reading ( _C) 8 7 6 5 4 3 2 1 0 50 units from two production lots. T A = +25_ C Temperature ( _C) 18 17 16 15 14 −40 −20 120 100 0 20 80 60 40 Ratio ( µA/µA) 25 20 15 10 5 0 50 units from two production lots. Temperature ( _C) 10 8 6 4 2 0 1.0 0.8 0.6 0.4 0.2 0 −40 −20 120 0 20 40 60 80 100 AVDD, AVSS DVDD Master Clock (MHz) 20 16 12 8 4 0 20 16 12 8 4 0 0.1 1 100 10 DRATE[1:0] = 11 Noise Linearity ADS1258-EP www.ti.com SBAS445D – MARCH 2009 – REVISED MARCH 2011 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, AVDD = +2.5V, AVSS = –2.5V, DVDD = +3.3V, fCLK = 16MHz (external clock) or fCLK = 15.729MHz (internal clock), OPA227 buffer between MUX outputs and ADC inputs, VREFP = +2.048V, and VREFN = –2.048V, unless otherwise noted. TEMPERATURE SENSOR VOLTAGE vs TEMPERATURE TEMPERATURE SENSOR READING HISTOGRAM Figure 28. Figure 29. SENSOR BIAS CURRENT SOURCE RATIO SENSOR BIAS CURRENT SOURCE RATIO HISTOGRAM vs TEMPERATURE Figure 30. Figure 31. SUPPLY CURRENT vs TEMPERATURE NOISE AND INL vs MASTER CLOCK Figure 32. Figure 33. Copyright © 2009–2011, Texas Instruments Incorporated Submit Documentation Feedback 13 Product Folder Link(s): ADS1258-EP |
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