The MAX6622 and MAX6636 are highly accurate multichannel temperature sensors which can accurately measure four/six external locations with ±1 degree Celsius accuracy. In both the MAX6622 and the MAX6636, one remote channel is optimised to provide accurate temperature measurements, even when used with thermal diodes on ICs operating from power supply voltages as low as 0.3V.

These devices are ideal for applications in which precise temperature monitoring of multiple locations is critical.The MAX6622 and MAX6636 achieve their high accuracy by taking advantage of Maxim's industry-leading temperature-sensing architecture and precision-trimming capability. Both products are ideal for a variety of applications in which accurate temperature monitoring of multiple locations is critical.

The MAX6622 accurately measures its own temperature and the temperature of up to four external locations-such as CPUs, memory, GPUs, and other heat-sensitive components-while the MAX6636 accurately measures its own temperature and up to six external locations.

The MAX6622/MAX6636 increase flexibility by allowing the user to program the temperature threshold of alarm outputs. These outputs can serve as interrupts, they can be connected to a system fan, or they can be used for other thermal-management circuitry-further enhancing flexibility. Additionally, these devices offer a hardware-standby function that eliminates false alerts at system boot.

The MAX6622/MAX6636 communicate through a 2-wire SMBus(TM)-compatible interface. They operate from a +3.0V to +5.5V supply-voltage range, and they consume only 500microamps of supply current and 30microamps in standby mode. Packaged in small 16-/20-pin TSSOP packages, these devices are fully specified over the -40 degrees Celsius to +125 degrees Celsius temperature range. Prices start at $3.00 for the MAX6622 and $3.75 for the MAX6636 (1000-up, FOB USA).

For more information, go to www.maxim-ic.com.