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ADS1259 Arkusz danych(PDF) 11 Page - Texas Instruments |
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ADS1259 Arkusz danych(HTML) 11 Page - Texas Instruments |
11 / 49 page 250 200 150 100 50 0 50 100 150 200 250 - - - - - V (V) REF 5.0 0.5 1.0 1.5 2.0 2.5 VREFNInputCurrent (VREFP=AVDD) VREFPInputCurrent (VREFN=AVSS) 3.0 3.5 4.0 4.5 0 25 50 75 100 125 150 175 200 225 250 - - - - - - - - - - Temperature( C) ° 125 -55 -35 -15 5 25 45 65 85 105 VREFPInputCurrent VREFNInputCurrent 0.010 0.008 0.006 0.004 0.002 0 0.002 0.004 0.006 0.008 0.010 - - - - - Time(s) 6 0 1 2 3 4 C =1 FX7R m REFIN 5 130 128 126 124 122 120 Temperature( C) ° 125 -55 -35 -15 5 25 45 65 85 105 InternalOscillator ExternalCrystal 7.50 7.45 7.40 7.35 7.30 7.25 7.20 Temperature( C) ° 125 -55 -35 -15 5 25 45 65 85 105 ADS1259 www.ti.com SBAS424C – JUNE 2009 – REVISED MARCH 2010 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, AVDD = +2.5V, AVSS = –2.5V, DVDD = 3.3V, VREF = 2.5V, VREFN = AVSS, fCLK = 7.3728MHz, and fDATA = 60SPS, unless otherwise noted. REFERENCE INPUT CURRENT vs TEMPERATURE REFERENCE INPUT CURRENT vs REFERENCE VOLTAGE Figure 26. Figure 27. DIFFERENTIAL INPUT IMPEDANCE vs TEMPERATURE INTERNAL REFERENCE SETTLING TIME Figure 28. Figure 29. INTERNAL OSCILLATOR vs TEMPERATURE Figure 30. Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): ADS1259 |
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