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ADS1222IPWR Datasheet(PDF) 4 Page - Texas Instruments |
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ADS1222IPWR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 27 page ADS1222 SBAS314B − APRIL 2004 − REVISED JANUARY 2009 www.ti.com 4 ELECTRICAL CHARACTERISTICS (continued) All specifications at TA = −40°C to +85°C, VDD = +5V, fCLK = 2MHz, and VREF = +2.5V, unless otherwise noted. PARAMETER UNIT MAX TYP MIN TEST CONDITIONS Digital Input/Output VIH 0.8 VDD VDD + 0.1 V Logic VIL GND − 0.1 0.2 VDD V Logic levels VOH IOH = 1mA 0.8 VDD V levels VOL IOL = 1mA 0.2 VDD V Input leakage ±10 µA CLK frequency (fCLK) 8 MHz CLK duty cycle 30 70 % Power Supply VDD 2.7 5.5 V Standby mode < 1 µA VDD = 5V, normal mode, buffer off 300 µA VDD current VDD = 5V, normal mode, buffer on 425 µA VDD current VDD = 3V, normal mode, buffer off 275 µA VDD = 3V, normal mode, buffer on 395 µA Total power dissipation VDD = 5V, buffer off 1.5 2.25 mW Total power dissipation VDD = 3V, buffer off 0.8 mW Temperature Range Specified −40 +85 °C Operating −55 +125 °C Storage −60 +150 °C (1) SPS = samples per second. (2) FSR = full-scale range = 4VREF. (3) It will not be possible to reach the digital output full-scale code when VREF > VDD/2. |
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