DS1775R+TR

The DS1775R+TR is a digital thermometer and thermostat from Analog Devices, designed for accurate temperature monitoring in space-constrained applications. It measures temperatures within a range of -55°C to +125°C with a typical accuracy of ±2.0°C. The device offers configurable resolution from 9 to 12 bits, allowing for precise thermal detection, which is particularly useful for identifying rapid thermal runaway conditions.

Communication with the DS1775R+TR is handled via a simple 2-wire serial interface, eliminating the need for external components. It operates on a wide power-supply range of 2.7V to 5.5V. The sensor is housed in a compact 5-pin SOT23 package, making it suitable for integration into various thermally-sensitive systems such as personal computers, servers, workstations, and office equipment.

This digital thermometer is software compatible with the DS75 2-wire thermal watchdog in thermometer mode. It also features an open-drain thermal alarm output (O.S.) that becomes active when the device temperature exceeds a user-defined threshold. The number of consecutive faults required to activate the alarm is configurable, and the device can operate in interrupt or comparator modes.