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AMC7891 Datasheet(PDF) 8 Page - Texas Instruments |
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AMC7891 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 42 page AMC7891 SBAS518A – AUGUST 2011 – REVISED DECEMBER 2011 www.ti.com ELECTRICAL CHARACTERISTICS – GENERAL SPECIFICATIONS AVDD = 4.75 to 5.5 V, GPIOVDD = 1.8 to 5.5 V, SPIVDD = 1.8 to 5.5 V, AGND = DGND = 0 V, External ADC reference = AVDD, TA = –40°C to 105°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT GENERAL PURPOSE I/O GPIOVDD = 1.8 V 0.7 ×GPIOVDD V VIH High-level input voltage GPIOVDD = 3.3 to 5.5 V 2.1 V GPIOVDD = 1.8 V 0.3 V VIL Low-level input voltage GPIOVDD = 3.3 to 5.5 V 0.8 V Iload = 1.6 mA, GPIOVDD = 1.8V, All GPIOs GPIOVDD - 0.25 V loaded and set to '1' VOH High-level output voltage Iload = 1.6 mA, GPIOVDD = 3.3 to 5.5V, All GPIOVDD - 0.2 V GPIOs loaded and set to '1' VOL Low-level output voltage Iload = -1.6 mA, All GPIOs loaded 0.4 V Input capacitance (1) 1 pF High impedance output 1 pF capacitance (1) LOGIC INPUTS: CS, SDI, SCLK SPIVDD = 1.8 V 0.7 ×SPIVDD V VIH High-level input voltage SPIVDD = 3.3 to 5.5 V 2.1 V SPIVDD = 1.8 V 0.3 V VIL Low-level input voltage SPIVDD = 3.3 to 5.5 V 0.7 V Input current ±1 µA Input capacitance (1) 1 pF High impedance output 1 pF capacitance (1) LOGIC OUTPUT: SDO VOH High-level output voltage Iload = 1.6 mA SPIVDD - 0.2 V VOL Low-level output voltage Iload = -1.6 mA 0.4 V LOGIC OUTPUT: DAV VOL Low-level output voltage Iload = -2 mA 0.4 V POWER REQUIREMENTS AVDD 4.75 5 5.5 V GPIOVDD 1.8 5.5 V SPIVDD 1.8 5.5 V Total supply current, AVDD + IDD Operating mode(2) 6.5 10 mA GPIOVDD + SPIVDD Power down mode 1.25 2 mA Power consumption Operating mode(2) 32.5 55 mW Power down mode 6.25 11 mW OPERATING RANGE Specified temperature range –40 25 105 °C (1) Specified by design. Not tested in production. (2) AVDD = GPIOVDD = SPIVDD = 5 V. No DAC load, all DACs at 0x200 code and ADC at the fastest auto conversion rate. 8 Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated Product Folder Link(s): AMC7891 |
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