DESCRIPTION

The DS75 digital thermometer and thermostat provides 9, 10, 11, or 12-bit digital temperature readings over a -55°C to +125°C range with ±2°C accuracy over a -25°C to +100°C range. At power-up, the DS75 defaults to 9-bit resolution for software compatibility with the LM75. Communication with the DS75 is achieved via a simple 2–wire serial interface. Three address pins allow up to eight DS75 devices to operate on the same 2–wire bus, which greatly simplifies distributed temperature sensing applications.

FEATURES

Temperature Measurements Require No External Components

Measures Temperatures from -55°C to +125°C (-67°F to +257°F)

±2°C Accuracy Over a -25°C to +100°C Range

Thermometer Resolution is User Configurable from Nine(Default) to 12 Bits (0.5°C to 0.0625°C Resolution)

9-Bit Conversion Time is 150ms (Max)

Thermostatic Settings are User-Definable

Data is Read/Written Via 2-Wire Serial (Interface (SDA and SCL Pins)

Multidrop Capability Simplifies Distributed Temperature-Sensing Applications

Wide Power-Supply Range (+2.7V to +5.5V).

Pin/software Compatible with the LM75

Available in 8-Pin μMAX® and SO Packages. See Table 1 for Ordering Information

Applications Include Personal Computers, Cellular Base Stations, Office Equipment, or Any Thermally Sensitive System