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Sensors/MEMS??

New temp, voltage sensors support SST platform

Posted: 10 Jul 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Vince Biancomano? SMSC? EMC1102? EMC1152? temperature sensors?

SMSC announced that its hardware monitorsthe EMC1102 dual temperature sensor and the EMC1152, with two temperature sensors and five voltage monitoring channels, keep watch on Intel PC platforms containing a single-wire simple serial transport (SST) host.

"Helping our customers quickly implement the Intel 2006 desktop architecture by providing SST-compliant devices was bolstered by our use of proprietary technology that boosts temperature sensing accuracy at advanced processor nodes," said Mark Beadle, director of marketing for Environmental Monitoring and Control Products at SMSC.

As an external temperature monitor, the EMC1102 (a fixed address, discoverable device with up to nine programmable addresses) is accurate to 1C over 50C to 70C; resolution is 0.125C. The sensor, which works from a 3V to 3.6V source, has as accuracy of 2C over 40C to 70C when working as an internal temperature monitor (operating temperature range is -40C to 125C).

The EMC1152 (fixed address, discoverable device with three programmable addresses), with identical temperature monitoring characteristics, is also configured to monitor the voltage on VCCP, and 2.5-, 3.3-, 5- and 12V buses. Its voltage monitors are accurate to 2 percent.

Both hardware monitors feature resistance error correction, and beta compensation (-1 models), which adjusts for the beta in the 65nm substrate transistor used as a thermal diode.

Production samples of both the EMC1102 and EMC1152 are already available. Pricing for each part is 90 cents and $1.20, respectively, in 10,000 quantities. The EMC1102 is available in an 8-pin MSOP, green, Pb-free package, while the EMC1152 is available in a 10-pin MSOP, green, Pb-free package.

- Vince Biancomano
eeProductCenter




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