Maxim's Highly Accurate, 8-Channel Temperature Sensor Reduces Board Area


electronica, Hall A5, Stand 324

Maxim Integrated Products introduces the MAX6581, a ±1 degree Celsius accurate, 8-channel temperature sensor. It has seven remote sensing channels to monitor ASICs, FPGAs, CPUs, and boards with multiple hot spots. Each remote channel includes series resistance cancellation and beta compensation for best accuracy. Because the MAX6581 contains eight channels of temperature sensing, but requires only a single I2C address for these eight channels, it reduces board area and overall system cost. This part replaces up to eight local sensors or seven single-channel remote sensors and can measure the die temperature of external ICs that have integrated thermal diodes. The MAX6581 also compensates for parasitic series resistance. Additionally, any of the seven remote channels can be used to measure board temperature using a discrete diode-connected transistor. Offered in a 4mm x 4mm, 24-pin TQFN package with an exposed pad, the MAX6581 is specified for an operating temperature range of -40 degrees Celsius to +125 degrees Celsius. Prices start at $1.24 (1000-up, FOB USA).