The ADT7310 and ADT7410 of Analog Devices are high-precision digital temperature sensors. They include a bandgap temperature reference and an ADC for monitoring and digitizing temperature. By default, the ADC resolution is set to 13 bits (+0.0625 ° C). By setting bit 7 in the configuration register, the resolution becomes 16 bits (+0.0078 ° C).
The ADT7310 and ADT7410 are guaranteed to operate at a supply voltage of 2.7 V to 5.5 V. Working at 3.3 V, the average supply current is usually 210 μ A。 These sensors have a shutdown mode that shuts down the device and provides a normally 2 μ Closing current of a. Their rated operating temperature range is - 55 ° C to+150 ° C. 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, which becomes active when the temperature exceeds the programmable limit. INT and CT pins can operate in comparator or interrupt mode. ADT7310/ADT7410 is an ideal choice for medical equipment, environmental control systems and thermal protection applications.
