SOT TEMPERATURE SENSOR ALLOWS MULTIDROP CAPABILITY OF UP TO EIGHT ICs ON A SINGLE WIRE
SUNNYVALE, CA—May 14, 1999—Maxim Integrated Products introduces the MAX6575L/H temperature sensor. This device features a unique single-wire digital interface that allows a microprocessor to interface with up to eight sensors using a single control line. Temperatures are sensed by measuring the time delay between the falling edge of an external triggering pulse and the falling edge of subsequent delays reported from the devices. Different sensors on the same I/O line use different timeout multipliers to avoid overlapping signals.
The MAX6575L/H features ±3°C accuracy max (±0.8°C typical) at +25°C and ±5°C accuracy max at +125°C. It operates from a +2.7V to +5.5V supply and features a low 150µA supply current, making the MAX6575L/H ideal for use in portable, battery-powered equipment.
The devices differ in that the MAX6575L version provides four delay ranges less than 50ms, and the MAX6575H version provides four delay ranges greater than 50ms. These delays are selectable by using the two time-select pins on each chip.
The MAX6575LZUT/MAX6575HZUT come in space-saving six-pin SOT23 packages that are guaranteed to operate over the automotive temperature range (-40°C to +125°C). Prices start from $0.81 (2500-up, FOB USA).
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