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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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ADS1248 Arkusz danych(PDF) 4 Page - Texas Instruments |
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ADS1248 Arkusz danych(HTML) 4 Page - Texas Instruments |
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4 / 70 page  ADS1246 ADS1247 ADS1248 SBAS426G – AUGUST 2008 – REVISED OCTOBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Minimum/maximum specifications apply from –40°C to +105°C. Typical specifications are at +25°C. All specifications at AVDD = +5V, DVDD = +3.3V, AVSS = 0V, VREF = +2.048V, and oscillator frequency = 4.096MHz, unless otherwise noted. ADS1246, ADS1247, ADS1248 PARAMETER CONDITIONS MIN TYP MAX UNIT CURRENT SOURCES (IDACS) Output current 50, 100, 250, 500, 750, 1000, 1500 μA Voltage compliance All currents AVDD – 0.7 V Initial error All currents, each IDAC –6 ±1 6 % of FS Initial mismatch All currents, between IDACs ±0.15 % of FS Temperature drift Each IDAC 100 ppm/ °C Temperature drift matching Between IDACs 10 ppm/ °C SYSTEM MONITORS Voltage TA = +25°C 118 mV Temperature sensor reading Drift 405 μV/°C GENERAL-PURPOSE INPUT/OUTPUT (GPIO) VIH 0.7AVDD AVDD V VIL AVSS 0.3AVDD V Logic levels VOH IOH = 1mA 0.8AVDD V VOL IOL = 1mA 0.2 AVDD V DIGITAL INPUT/OUTPUT (other than GPIO) VIH 0.7DVDD DVDD V VIL DGND 0.3DVDD V Logic levels VOH IOH = 1mA 0.8DVDD V VOL IOL = 1mA DGND 0.2 DVDD V Input leakage DGND < VIN < DVDD ±10 μA Frequency 1 4.5 MHz Clock input (CLK) Duty cycle 25 75 % Internal oscillator frequency 3.89 4.096 4.3 MHz POWER SUPPLY DVDD 2.7 5.25 V AVSS –2.5 0 V AVDD AVSS + 2.7 AVSS + 5.25 V Normal mode, DVDD = 5V, 230 μA data rate = 20SPS, internal oscillator DVDD current Normal mode, DVDD = 3.3V, 210 μA data rate = 20SPS, internal oscillator Sleep mode 0.2 µA Converting, AVDD = 5V, 225 µA data rate = 20SPS, external reference Converting, AVDD = 3.3V, 200 µA data rate = 20SPS, external reference AVDD current Sleep mode 0.1 µA Additional current with internal reference 180 μA enabled AVDD = DVDD = 5V, data rate = 20SPS, internal oscillator, 2.3 mW external reference Power dissipation AVDD = DVDD = 3.3V, data rate = 20SPS, internal oscillator, 1.4 mW external reference TEMPERATURE RANGE Specified –40 +105 °C Operating –40 +125 °C Storage –60 +150 °C 4 Copyright © 2008–2011, Texas Instruments Incorporated |
Podobny numer części - ADS1248 |
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Podobny opis - ADS1248 |
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