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AMC7812 Datasheet(PDF) 5 Page - Texas Instruments |
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AMC7812 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 92 page  AMC7812 www.ti.com SBAS513D – JANUARY 2011 – REVISED OCTOBER 2012 ELECTRICAL CHARACTERISTICS (continued) At TA = –40°C to +105°C, AVDD = DVDD = 4.5V to 5.5V, AVCC = +15V, AGND = DGND = 0V, IOVDD = 2.7V to 5.5V, internal 2.5V reference, and the DAC output span = 0V to 5V, unless otherwise noted. AMC7812 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INTERNAL TEMPERATURE SENSOR Operating range –40 +125 °C AVDD = 5V, TA = –40°C to +125°C ±1.25 ±2.5 °C Accuracy AVDD = 5V, TA = 0°C to +100°C ±1.5 °C Resolution Per LSB 0.125 °C Conversion rate External temperature sensors are disabled 15 ms EXTERNAL TEMPERATURE SENSOR (Using 2N3906 external transistor) Operating range Limited by external diode –40 +150 °C AVDD = 5V, TA = 0°C to +100°C, ±1.5 °C TD = –40°C to +150°C Accuracy(6)(7) AVDD = 5V, TA = –40°C to +100°C, ±2 °C TD = –40°C to +150°C Resolution Per LSB 0.125 °C With resistance cancellation 72 93 100 ms (RC bit = '1') Conversion rate per sensor Without resistance cancellation 33 44 47 ms (RC bit = '0') DIGITAL LOGIC: GPIO(8)(9) and ALARM IOVDD = +5V 2.1 0.3 + IOVDD V VIH Input high voltage IOVDD = +3.3V 2.1 0.3 + IOVDD V IOVDD = +5V –0.3 0.8 V VIL Input low voltage IOVDD = +3.3V –0.3 0.8 V IOVDD = +5V, sinking 5mA 0.4 V VOL Output low voltage IOVDD = +3.3V, sinking 2mA 0.4 V High-impedance leakage 5 µA High-impedance output capacitance 10 pF DIGITAL LOGIC: All Except SCL, SDA, ALARM, and GPIO IOVDD = +5V 2.1 0.3 + IOVDD V VIH Input high voltage IOVDD = +3.3V 2.1 0.3 + IOVDD V IOVDD = +5V –0.3 0.8 V VIL Input low voltage IOVDD = +3.3V –0.3 0.8 V Input current ±1 µA Input capacitance 5 pF IOVDD = +5V, sourcing 3mA 4.8 V VOH Output high voltage IOVDD = +3.3V, sourcing 3mA 2.9 V IOVDD = +5V, sinking 3mA 0.4 V VOL Output low voltage IOVDD = +3.3V, sinking 3mA 0.4 V High-impedance leakage ±5 µA High-impedance output capacitance 10 pF (6) TD is the external diode temperature. (7) Auto conversion mode disabled (8) For pins GPIO0-3, the external pull up resistor must be connected to a voltage less than or equal to 5.5V. (9) For pins GPIO4-7, the external pull up resistor must be connected to a voltage less than or equal to AVDD. Copyright © 2011–2012, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: AMC7812 |
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