DS75LVS

数字温度计和温度监控器 Digital Thermometer and Thermostat

DESCRIPTION

This low-voltage 1.7V to 3.7V 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 DS75LV defaults to 9-bit resolution for software compatibility with the LM75. Communication

with the DS75LV is achieved through a simple 2-wire serial interface. Three address pins allow up to eight DS75LV devices to operate on the same 2-wire bus, which greatly simplifies distributed temperature sensing applications.

FEATURES

Operating Range from 1.7V to 3.7V

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 9 Default to 12 Bits 0.5°C to 0.0625°C Resolution

9-Bit Conversion Time is 25ms Max

Thermostatic Settings are User-Definable

Data Read/Write Occurs Through a 2-Wire Serial Interface SDA and SCL Pins

Data Lines Filtered Internally for Noise Immunity 50ns Deglitch

Bus Timeout Feature Prevents Lockup Problems on 2-Wire Interface

Multidrop Capability Simplifies Distributed Temperature-Sensing Applications

Pin/Software Compatible with the LM75

Available in 8-Pin μSOP μMAX and SO Packages

APPLICATIONS

Personal Computers

Cellular Base Stations

Office Equipment

Any Thermally Sensitive System