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ADS1258IRTCTG4 Datasheet(PDF) 4 Page - Texas Instruments |
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ADS1258IRTCTG4 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 54 page  ADS1258 SBAS297G – JUNE 2005 – REVISED MARCH 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = –40°C to +105°C, AVDD = +2.5V, AVSS = –2.5V, DVDD = +3.3V, VREF = +4.096V, VREFN = –2.5V, fCLK = 16MHz (external clock) or fCLK = 15.729MHz (internal clock), and OPA227 buffer between MUX outputs and ADC inputs, unless otherwise noted. ADS1258 TEST PARAMETER CONDITIONS MIN TYP MAX UNIT DIGITAL INPUT/OUTPUT VIH 0.7DVDD DVDD V VIL DGND 0.3DVDD V Logic Levels VOH IOH = 2mA 0.8DVDD DVDD V VOL IOL = 2mA DGND 0.2DVDD V Input Leakage VIN = DVDD, GND 10 μA Frequency 0.1 16 MHz Master Clock Input (CLKIO) Duty Cycle 40 60 % Crystal Frequency 32.768 kHz Clock Output Frequency 15.729 MHz Crystal Oscillator (see Crystal Oscillator section) Start-Up Time (Clock Output Valid) 150 mS Clock Output Duty Cycle 40 60 % POWER SUPPLY DVDD 2.7 5.25 V AVSS –2.6 0 V AVDD AVSS + 4.75 AVSS + 5.25 V External Clock 0.25 0.6 mA Operation Internal Oscillator Operation, Clock 0.04 mA Output Disabled DVDD Supply Current Internal Oscillator Operation, Clock 1.4 mA Output Enabled(6) Power-Down(7) 1 25 µA Converting 8.2 12 mA Standby 5.6 mA AVDD, AVSS Supply Current Sleep 2.1 mA Power-Down 2 85 µA Converting 42 62 mW Standby 29 mW Power Dissipation Sleep 11 mW Power-Down 14 μW (6) CLKIO load = 20pF. (7) No clock applied to CLKIO. 4 Submit Documentation Feedback Copyright © 2005–2011, Texas Instruments Incorporated Product Folder Link(s): ADS1258 |
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