Temperature sensors boast ‘smallest five-channel’ model

Five 1.8V temperature sensors released by Microchip include what the company claims is the industry’s smallest five-channel temperature sensor with standard lead spacing.

The EMC181x temperature sensor family also introduces system temperature rate-of-change reporting, a feature that provides advanced warning on how the temperature of a system is fluctuating.

The temperature sensors enable designers to reduce power consumption and lower system voltage in applications such as the internet of things (IoT) and personal computing devices in which temperature measurement is central to functionality.

The ability to monitor temperature at multiple locations with a single, integrated temperature sensor reduces board complexity and simplifies design. The EMC181x temperature sensor family offers a variety of remote channels at 1.8V operation to fit different design needs, ranging from two to five channels. The family is suitable for applications migrating from 3.3V systems to lower voltage rails, such as battery-operated IoT applications, personal computing devices, field programmable gate arrays (FPGAs) and graphics processing units (GPUs). The EMC181x family is register- and voltage-compatible with Microchip’s popular 3.3V EMC14xx temperature sensors for migration to 1.8V. The three-channel sensor is available in an eight-pin 2.0 x 2.0mm footprint and the five-channel in a 10-pin 2.0 x 2.5mm footprint. The sensors can also reduce the number of devices needed for remote temperature monitoring.

The sensors can measure the system temperature rate-of-change, making the EMC181x devices the industry’s first to offer two-dimensional temperature sensing. As well as reporting on the regular temperature, 2D sensing notifies user of the rate of temperature change in a system and shares data that can help to better regulate applications.

The sensors are suitable for closed control loop systems and other applications that prioritise lower voltage rails. The system provides an early notification of rising or falling temperatures, protecting against potential system failure.

The ADM00773 evaluation board provides everything needed to demonstrate the 1.8V three-channel two-wire EMC1833 temperature sensor. The EMC181xx sensors evaluate programmable features such as rate-of-change, temperature alert limits and resistance error correction (REC), in addition to providing off-board temperature measurements and data logging. The evaluation board connects to a PC through a USB interface board and is supplied with the Microchip Thermal Management Software graphical user interface (GUI).

The five devices in the EMC181x family are all available today for sampling and volume production.


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