The ADT7310 is a high accuracy digital temperature sensor in a narrow SOIC package. It contains a band gap temperature reference and a 13-bit ADC to monitor and digitize the temperature to a 0.0625°C resolution. The ADC resolution, by default, is set to 13 bits (0.0625 °C). This can be changed to 16 bits (0.0078 °C) by setting Bit 7 in the configuration register (Register Address 0x01).
The ADT7310 is guaranteed to operate over supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 210 μA. The ADT7310 has a shutdown mode that powers down the device and offers a shutdown current of typically 2 μA. The ADT7310 is rated for operation over the −55°C to +150°C temperature range.
The CT pin is an open-drain output that becomes active when the temperature exceeds a programmable critical temperature limit. The default critical temperature limit is 147°C. The INT pin is also an open-drain output that becomes active when the temperature exceeds a programmable limit. The INT and CT pins can operate in either comparator or interrupt mode.
|Title||Content Type||File Type|
|ADT7310: ±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor Data Sheet (Rev A, 01/2012) (pdf, 424 kB)||Data Sheets|
|AN-1250: Interfacing an ADT7310/ADT7410 to a Cortex-M3 Based Precision Analog Microcontroller (ADuCM360) (pdf, 265 kB)||Application Notes|
|CN-0287: Fully Isolated 4-Channel, Temperature Measurement Circuit Optimized for Performance, Robustness, and Low Cost (pdf, 696 kB)||Circuit Note|
|UG-047: Evaluating the ADT7310/ADT7410 Temperature Sensors (pdf, 786 kB)||User Guides|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
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