Datasheet ADT7301 (Analog Devices) - 3

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ADT7301 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 = 3.3 V (±10%) and 5 V (±5%) DD Accuracy1 ±0.5 ±1 °C T = 0°C to 70°C A ±2 °C T = −20°C to +85°C A ±3 °C T = −40°C to +125°C A ±42 °C T = −40°C to +150°C A Temperature Resolution 0.03125 °C Autoconversion Update Rate, t 1.5 sec Temperature measurement every 1.5 second R 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 = 3.3 V, powered up and converting DD 190 300 µA V = 3.3 V, powered up and not converting DD 1.6 2.2 mA V = 5 V, powered up and converting DD 280 400 µA V = 5 V, powered up and not converting DD Shutdown Mode 0.2 1 µA V = 3.3 V, T = 0°C to 70°C DD A 0.4 2 µA V = 5 V, T = 0°C to 70°C DD A 20 µA V = 2.7 V to 5.25 V, T = −40°C to +150°C DD A Power Dissipation Normal Mode (Average) 631 µW V = 3.3 V, autoconversion update, t DD R 1.41 mW V = 5 V, autoconversion update, t DD R Shutdown Mode (Average)4 1 SPS 4.88 µW V = 3.3 V DD 7.4 µW V = 5 V DD 10 SPS 42.9 µW V = 3.3 V DD 65 µW V = 5 V DD 100 SPS 423 µW V = 3.3 V DD 641 µW V = 5 V DD DIGITAL INPUT5 Input High Voltage, V 2.5 V IH Input Low Voltage, V 0.8 V IL Input Current, I ±1 µA V = 0 V to V IN IN DD Input Capacitance, C 10 pF All digital inputs IN DIGITAL OUTPUT5 Output High Voltage, V V − 0.3 V I = I = 200 µA OH DD SOURCE SINK Output Low Voltage, V 0.4 V I = 200 µA OL OL Output Capacitance, C 50 pF OUT 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. Rev. B | Page 3 of 16 Document Outline Features Applications Functional Block Diagram General Description Product Highlights Revision History Specifications Timing Characteristics Absolute Maximum Ratings ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Theory of Operation Converter Details Temperature Value Register Temperature Conversion Equations Serial Interface Read Operation Write Operation Applications Information Microprocessor Interfacing ADT7301-to-MC68HC11 Interface ADT7301-to-8051 Interface ADT7301-to-PIC16C6x/7x Interface ADT7301-to-ADSP-21xx Interface Mounting the ADT7301 Supply Decoupling Outline Dimensions Ordering Guide