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MAXIM OFFERS INDUSTRY'S SMALLEST ±1°C ACCURATE LOCAL/REMOTE TEMP SENSOR IN A 3 x 3 QFN PACKAGE
SUNNYVALE, CA-August 6, 2003-Maxim Integrated Products
(NASDAQ: MXIM) introduces the MAX6642, a precise two-channel, digital temperature sensor that accurately measures the temperature of a remote PN junction within ±1°C and its own die within ±2°C. It features a single overtemperature alarm and operates through an SMBus™-compatible, 2-wire interface. The MAX6642 comes in eight factory-preset versions, occupying different addresses on the SMBus to prevent conflicts in multiprocessor-based systems. This device operates over a temperature range of -55°C to +150°C with performance optimized from +60°C to +100°C.
To enhance system reliability, the MAX6642 includes an SMBus timeout. A fully programmable overtemperature alarm allows complete configuration of the ALERT output.
The MAX6642 SMBus interface accepts standard system management write byte, read byte, send byte, and receive byte commands to read the temperature data and to program the alarm threshold. The data format is 10 bits with each LSB corresponding to 0.125°C. Measurements are completed autonomously, with the conversion rate programmed by the user, or in a single-shot mode.
The MAX6642 has a 3V to 5.5V supply voltage range and is packaged in a 6-pin, leadless, 3mm x 3mm, thin QFN occupying the same footprint as a standard SOT23. Prices start at $1.15 (1000-up, FOB USA).
SMBus is a trademark of Intel Corp.
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