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Cosmic intros Silicon-proven temperature-sensor

Posted: 20 Feb 2008     Print Version  Bookmark and Share

Keywords:TSMC process; silicon-proven temperature sensor 

Cosmic Circuits has introduced a silicon-proven temperature sensor in the 65nm TSMC process. The temperature-sensor comes with an integrated 12b sigma-delta Analogue-to-Digital converter to provide an accurate digital readout.

Today's System-on-Chip devices in 65nm process technology integrate multiple systems on the same chip. The level of complexity and integration often results in increase in die-temperature. Systems that push performance or work in harsh high-temperature environments need capability to track the temperature. "Availability of a proven temperature sensor silicon IP core in 65nm effectively addresses this need, and enables value-added capabilities on our customers' system-on-chips", said Krishnan Ramabadran, VP of Marketing for Cosmic Circuits.

Commenting on the technical aspects of the temperature sensor, C. Srinivasan, VP of Engineering for Cosmic Circuits said that "the sensor comes with an integrated analogue-to-digital converter based on the sigma-delta architecture that does not compromise with the accuracy. With a direct 12-bit readout, it aids easy integration to a host microprocessor bus", and further added that "it is configurable up to 8-sensors while using the same digitiser, and a complete die temperature profiling is possible with minimal impact to the die-area".

Other features include a power-down capability with short wake-up times enabling less than 2µA of average current drawn from the supply. The power-supply range is wide, ranging from 2.7V to 4.2V, providing flexibility and tolerance to wide power-supply variations. The sensor can be connected directly to a Li-Ion battery at 4.2V.

The IP-core is available for integration into customer chips. Cosmic Circuits works closely with its customers for appropriate integration of silicon-IP and thus ensure first-pass success for its customers.

"Cosmic Circuits will be releasing a 65nm "GP" version of the temperature sensor as a follow-up to this, which would address the CPU, Server and high-speed memory markets", said Krishnan Ramabadran, VP of Marketing for Cosmic Circuits. "Silicon-proven temperature sensor operates even at a power-supply voltage as high as 4.2V. Cosmic Circuits has extended its technology to that allows connection directly to a Li-Ion battery in digital CMOS processes, into the 65nm process node. Until now this technology was available in its "Power-On-SoC" family of power-management products for system-on-chip integration",he added.

Cosmic Circuits has been rapidly expanding its portfolio in several technology areas and technology nodes. Its WiMO platform of analogue base-band solutions for wireless MIMO communication chips, and its Power-On-SoC platform of power-regulators for on-chip integration, have been gaining acceptance.

Cosmic Circuits offers a large portfolio of analogue and mixed-signal cores for system-on-chip integration and continues to constantly innovate to offer best-in-class solutions to its customers.

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