ADT7301 Datasheet | Analog Devices

FEATURES 13-Bit, ±0.5°C Accurate, Micro Power Digital Temperature Sensor in 6-Lead SOT-23 ADT7301 FUNCTIONAL BLOCK DIAGRAM BAND GAP TEMPERATURE SENSOR GND 13-BIT ANALOG/DIGITAL CONVERTER VDD 13-bit temperature-to-digital converter - 40°C to +150°C operating temperature range ±0.5°C typical accuracy 0.03125°C temperature resolution Shutdown current of 1 µA Power dissipation of 0.631 m W at VDD = 3.3 V SPI- and DSP-patible serial interface Shutdown mode Space-saving SOT-23 and MSOP packages TEMPERATURE VALUE REGISTER DOUT APPLICATIONS Medical equipment Automotive: Environmental controls Oil temperature Hydraulic systems Cell phones Hard disk drives Personal puters Electronic test equipment Office equipment Domestic appliances Process control Figure 1. Functional Block Diagram GENERAL DESCRIPTION The ADT7301 is a plete temperature monitoring system available in SOT-23 and MSOP packages. It contains a band gap temperature sensor and a 13-bit ADC to monitor and digitize the temperature reading to a resolution of 0.03125°C. The ADT7301 has a flexible serial interface that allows easy interfacing to most microcontrollers. The interface is patible with SPI®, QSPI™, and MICROWIRE™ protocols as well as DSPs. The part features a standby mode that is controlled via the serial interface. The ADT7301’s wide supply voltage range, low supply current, and SPI patible interface make it ideal for a variety of applications, including personal puters, office equipment, automotive, and domestic appliances. The ADT7301 is rated for operation over the -40°C to +150°C temperature range. It is not remended 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 will affect device reliability. Rev. Pr J Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of...