Power Electronics

Temperature-Voltage Sensor Family is SST-Enabled

Analog Devices’ family of digital temperature and voltage sensors is designed for use in desktop computers and workstations that employ the Simple Serial Transport (SST) bus, which was co-developed by Analog Devices and Intel. These temperature and voltage sensors expand ADI's offering of power management devices while enabling customers to leverage next-generation features built into computing chipsets from Intel.

The family of sensors incorporates a 10-bit analog-to-digital converter (ADC) to provide accurate, high-performance communication of temperature and voltage levels over a reliable, high-speed environmental management bus. In addition to monitoring temperature and voltage, the family also allows designers to use emerging features found in next-generation Intel core-logic chipsets to further enhance overall system performance and efficiency.

The ADT748x family operates at speeds over 1 Mbps and is housed in a small package (8-pin or 10-pin MSOP). The ADT7484A and ADT7486A are simple, 1°C-accurate digital temperature sensors that monitor their own temperature, as well as one (ADT7484A) or two (ADT7486A) remote sensor diodes.

The ADT7485A digital temperature sensor and voltage monitor can sense its own temperature, as well as that of a remote sensor diode, and can also monitor four external voltage channels and its own supply voltage using its on-board 10-bit ADC (analog-to-digital converter). A single, bidirectional SST data line controls all the devices in the ADT784x family.

The sensor family is sampling now, with volume production scheduled for June 2006. The devices are priced at $1.50 per unit in 1000-piece quantities. The ADT7484A is available in an 8-lead MSOP, and the ADT7485A and ADT7486A are available in 10-lead MSOP packaging.

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