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    Microchip MCP990X multi-channel temp sensor

    160114-AIPD-DIAG-MCP990X-7x5

    Remote diode measurement with resistance error correction enables accurate readings of up to 20 inches away from the IC

     29 March 2016, New Delhi, Microchip Technology Inc., a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, has announced the MCP990X family of System Management Bus (SMBus) temp sensor ICs for monitoring of up to four channels in cold, outdoor and industrial low-temperature applications ranging from freezers and refrigerators to base stations and remote radio units. With ±1°C maximum accuracy for both external and internal diode temperatures from -40°C to +65°C, these ICs provide a low-cost, highly flexible solution where precision is needed at lower temperatures.

     Advanced features of the MCP990X family include remote diode temperature measurement with resistance error correction that compensates for voltage drops from connectors and long board traces, enabling accurate readings of up to 20 inches away from the IC. Injected system noise from components such as DC-DC converters and backlight inverters is also minimised with a sample-frequency hopping filter, allowing for easier placement and routing. The combination of these features with options for dual, triple and quad temperature monitoring provides for a wider range of measurement opportunities for an entire system with a single IC.

     “Extending our thermal-management portfolio to include a focus on colder remote and industrial applications gives us a unique offering in the industry,” said Bryan J. Liddiard, marketing vice president of Microchip’s Mixed-signal and Linear Products Division. “These devices complement system designs for our extensive line of microcontrollers as well, helping to ease development time based on the sensing and processing needs of end products.”

     Compact package options that take up less silicon space on the PCB and allow for smaller system solutions and better product design for temperature critical applications include a 2×2 footprint for the MCP9902 dual channel temperature sensor. The IC is the smallest temperature sensor in Microchip’s portfolio and 33 percent smaller than the company’s previous generation dual temperature sensor. Additionally, a 3×3 footprint package is available for the MCP9903 triple and MCP9904 quad temp sensors.

    Development support

     Microchip has also introduced the MCP9902 Evaluation Board (part # ADM00615), to enable development with the MCP9902low temp sensor. This board is available nowfrom microchipDIRECT(http://www.microchipdirect.com/ProductSearch.aspx?keywords=ADM00615) and any of Microchip’s authorised worldwide distributors.

     Availability: All three members of the MCP990X are available today for sampling and volume productionin 5,000-unit quantities.The MCP9902 is offered in an 8-pin, 2×2 WDFN package. The MCP9903 and MCP9904 areavailable in a 10-pin,3×3 DFN package.

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