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ADT7301ARMZ Arkusz danych(PDF) 4 Page - Analog Devices |
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ADT7301ARMZ Arkusz danych(HTML) 4 Page - Analog Devices |
4 / 17 page ADT7301 Rev. B | Page 3 of 16 SPECIFICATIONS TA = TMIN to TMAX, VDD = 2.7 V to 5.25 V, unless otherwise noted. All specifications are for −40°C to +150°C, unless otherwise noted. Table 1. A Grade Specifications Parameter Min Typ Max Unit Test Conditions/Comments TEMPERATURE SENSOR AND ADC V DD = 3.3 V (±10%) and 5 V (±5%) Accuracy1 ±0.5 ±1 °C T A = 0°C to 70°C ±2 °C T A = −20°C to +85°C ±3 °C T A = −40°C to +125°C ±42 °C T A = −40°C to +150°C Temperature Resolution 0.03125 °C Autoconversion Update Rate, t R 1.5 sec Temperature measurement every 1.5 second Temperature Conversion Time 1.2 ms Thermal Time Constant3 2 sec SUPPLIES Supply Voltage 2.7 5.25 V For specified performance Supply Current Normal Mode 1.6 2.2 mA V DD = 3.3 V, powered up and converting 190 300 µA V DD = 3.3 V, powered up and not converting 1.6 2.2 mA V DD = 5 V, powered up and converting 280 400 µA V DD = 5 V, powered up and not converting Shutdown Mode 0.2 1 µA V DD = 3.3 V, TA = 0°C to 70°C 0.4 2 µA V DD = 5 V, TA = 0°C to 70°C 20 µA V DD = 2.7 V to 5.25 V, TA = −40°C to +150°C Power Dissipation Normal Mode (Average) 631 µW V DD = 3.3 V, autoconversion update, tR 1.41 mW V DD = 5 V, autoconversion update, tR Shutdown Mode (Average)4 1 SPS 4.88 µW V DD = 3.3 V 7.4 µW V DD = 5 V 10 SPS 42.9 µW V DD = 3.3 V 65 µW V DD = 5 V 100 SPS 423 µW V DD = 3.3 V 641 µW V DD = 5 V DIGITAL INPUT5 Input High Voltage, V IH 2.5 V Input Low Voltage, V IL 0.8 V Input Current, I IN ±1 µA V IN = 0 V to VDD Input Capacitance, C IN 10 pF All digital inputs DIGITAL OUTPUT5 Output High Voltage, V OH V DD − 0.3 V I SOURCE = ISINK = 200 µA Output Low Voltage, V OL 0.4 V I OL = 200 µA Output Capacitance, C OUT 50 pF 1 The accuracy specifications for 0°C to 70°C are specified to 3.5-Σ performance. 2 It is not recommended to operate the device at temperatures above 125°C for greater than a total of 5% (5,000 hours) of the lifetime of the device. Any exposure beyond this limit affects device reliability. 3 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 ADT7301 experiences a thermal shock from 0°C to 100°C, it would take typically 2 seconds for the ADT7301 to reach 63.2°C. 4 The ADT7301 is taken out of shutdown mode and a temperature conversion is immediately performed after this write operation. When the temperature conversion is complete, the ADT7301 is put back into shutdown mode. 5 Guaranteed by design and characterization, not production tested. |
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