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ADT7302ARTZ-500RL7 Datasheet(PDF) 3 Page - Analog Devices |
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ADT7302ARTZ-500RL7 Datasheet(HTML) 3 Page - Analog Devices |
3 / 16 page ADT7302 Rev. 0 | Page 3 of 16 SPECIFICATIONS TA = TMIN to TMAX, VDD = 2.7 V to 5.25 V, unless otherwise noted. All specifications for –40°C to +125°C, unless otherwise stated. Table 1. Parameter Min Typ Max Unit Test Conditions/Comments TEMPERATURE SENSOR AND ADC VDD = 3.3 V (±10%) and 5 V (±5%). Accuracy ±1 ±2 °C TA = 0°C to 70°C. ±2.5 °C TA = −20°C to +85°C. ±3 °C TA = −40°C to +125°C. Temperature Resolution 0.03125 °C Autoconversion Update Rate, tR 1 sec Temperature measurement every 1 second. Temperature Conversion Time 800 μs Thermal Time Constant1 2 sec SUPPLIES Supply Voltage 2.7 5.25 V For specified performance. Supply Current Normal Mode 1.6 2.2 mA VDD = 3.3 V. Powered up and converting. 190 300 μA VDD = 3.3 V. Powered up and not converting. 1.6 2.2 mA VDD = 5 V. Powered up and converting. 280 400 μA VDD = 5 V. Powered up and not converting. Shutdown Mode 0.2 1 μA VDD = 3.3 V, TA = 0°C to 70°C. 0.4 2 μA VDD = 5 V, TA = 0°C to 70°C. 20 μA VDD = 2.7 V to 5.25 V, TA = −40°C to 125°C. Power Dissipation Normal Mode (Average) 631 μW VDD = 3.3 V. Auto conversion update, tR. 1.41 mW VDD = 5 V. Auto conversion update, tR. Shutdown Mode (Average)2 1 SPS 4.88 μW VDD = 3.3 V. 7.4 μW VDD = 5 V. 10 SPS 42.9 μW VDD = 3.3 V. 65 μW VDD = 5 V. 100 SPS 423 μW VDD = 3.3 V. 641 μW VDD = 5 V. DIGITAL INPUT3 Input High Voltage, VIH 2.5 V Input Low Voltage, VIL 0.8 V Input Current, IIN ±1 μA VIN = 0 V to VDD. Input Capacitance, CIN 10 pF All digital inputs. DIGITAL OUTPUT3 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 1 The thermal time constant is the time it takes for a temperature delta to change to 63.2% of its final value. For example, if the ADT7302 experiences a thermal shock from 0°C to 100°C, it typically takes 2 seconds for the ADT7302 to reach 63.2°C. 2 The ADT7302 is taken out of shutdown mode and a temperature conversion is immediately performed after this write operation. Once the temperature conversion is complete, the ADT7302 is put back into shutdown mode. 3 Guaranteed by design and characterization, not production tested. |
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