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ADT7312 Datasheet(PDF) 4 Page - Analog Devices |
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ADT7312 Datasheet(HTML) 4 Page - Analog Devices |
4 / 25 page Data Sheet ADT7312 Rev. A | Page 3 of 24 SPECIFICATIONS TA = −55°C to +175°C, VDD = 2.7 V to 5.5 V, unless otherwise noted. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments TEMPERATURE SENSOR AND ADC Accuracy1 ±1.0 °C TA = −55°C to +175°C, VDD = 2.7 V to 3.3 V ±1.1 °C TA = −55°C to +175°C, VDD = 3.3 V to 3.6 V ±1.2 °C TA = +150°C to +175°C, VDD = 4.5 V to 5.5 V ±1.5 °C TA = −55°C to +175°C, VDD = 4.5 V to 5.5 V ADC Resolution 13 Bits Twos complement temperature value of sign bit plus 12 bits (power-on default resolution) 16 Bits Twos complement temperature value of sign bit plus 15 bits (Bit 7 = 1 in the configuration register) Temperature Resolution 13-Bit 0.0625 °C 13-bit resolution (sign bit plus 12 bits) 16-Bit 0.0078 °C 16-bit resolution (sign bit plus 15 bits) Temperature Conversion Time 240 ms Continuous and one-shot conversion modes Fast Temperature Conversion Time 6 ms First conversion on power-up only 1 SPS Conversion Time 60 ms 1 SPS mode Temperature Hysteresis ±0.002 °C Repeatability2 ±0.015 °C TA = 25°C DC PSRR 0.1 °C/V TA = 25°C DIGITAL OUTPUTS (CT, INT) Open-drain outputs High Output Leakage Current, IOH +0.1 ±1 μA CT and INT pins pulled up to 5.5 V Output Low Voltage, VOL 0.4 V IOL = 3 mA at 5.5 V, IOL = 1 mA at 3.3 V Output High Voltage, VOH 0.7 × VDD V Output Capacitance, COUT 2 pF DIGITAL INPUTS (DIN, SCLK, CS) Input Current, IIN ±1 μA VIN = 0 V to VDD Input Low Voltage, VIL 0.4 V Input High Voltage, VIH 0.7 × VDD V Pin Capacitance, CIN 5 10 pF DIGITAL OUTPUT (DOUT) Output High Voltage, VOH VDD − 0.3 V ISOURCE = ISINK = 200 μA Output Low Voltage, VOL 0.4 V IOL = 200 μA Output Capacitance, COUT 50 pF POWER REQUIREMENTS Supply Voltage 2.7 5.5 V Supply Current Peak current while converting; SPI interface inactive Continuous Conversion Mode 245 320 μA VDD = 3.6 V 275 350 μA VDD = 5.5 V 1 SPS Mode 55 μA VDD = 3.6 V, TA = 25°C 70 μA VDD = 5.5 V, TA = 25°C Shutdown Mode 2.5 40 μA VDD = 3.6 V 5.4 50 μA VDD = 5.5 V Power Dissipation Power dissipated for VDD = 3.6 V, TA = 25°C Continuous Conversion Mode 880 μW 1 SPS Mode 200 μW Shutdown Mode 9 μW 1 Accuracy includes lifetime drift. 2 Based on a floating average of 10 readings. |
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