MAX31820PAR - Maxim Integrated

MAX31820PAR Ambient Temperature Sensor

The MAX31820PAR ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy. The device communicates over a 1-Wire® bus that, by definition, requires only one data line (and ground) for communi.

Features

● Unique 1-Wire Interface Requires Only One Port Pin for Communication
● Derives Power from Data Line (Parasite Power); No Local Power Supply Needed
● Multidrop Capability Simplifies Distributed Temperature-Sensing Applications
● Requires No External Components
● Measures Temperatures from -55°C to +125°C (-67°F to +257°F)
● ±0.5°C Accuracy from +10°C to +45°C
● Thermometer Resolution is User-Selectable from 9 Bits to 12 Bits
● Converts Temperature to 12-Bit Digital Word in 750ms (Max)
● User-Definable Nonvolatile (NV) Alarm Settings
● Alarm Search Command Identifies and Addresses De.