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Temperature Sensor GXCAS GX18B20UH Programmable Resolution Digital Thermometer with 1 Wire Interface

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Temperature Sensor GXCAS GX18B20UH Programmable Resolution Digital Thermometer with 1 Wire Interface

Temperature Range : -55℃~+125℃

Interface : Single-bus

Temperature Conversion Time : 750ms

Temperature Resolution : 12bit

Voltage - Supply : 2.5V~5.5V

Description : -55℃~+125℃ Single-bus 2.5V~5.5V MSOP-8 Analog and Digital Output RoHS

Mfr. Part # : GX18B20UH

Model Number : GX18B20UH

Package : MSOP-8

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GX18B20 Programmable Resolution 1-Wire Digital Thermometer

The GX18B20 is a digital thermometer providing 9-bit to 12-bit Celsius temperature measurements with a user-definable nonvolatile alarm function. It utilizes a 1-Wire interface, requiring only one data line for communication with a central microprocessor. Each chip possesses a unique 64-bit serial number, enabling multidrop capability for simplified distributed temperature-sensing applications. The device can be powered directly from the data line (parasite power mode), with a supply voltage range of 2.5V to 5.5V. It offers a measuring range of -55C to +125C (-67F to +257F) with an accuracy of 0.4C from -10C to +85C. The thermometer's resolution is user-selectable from 9 to 12 bits, with temperature conversion to a 12-bit digital word completed in a maximum of 750ms. The alarm function allows for user-definable nonvolatile trigger points, and an Alarm Search command can identify devices outside programmed limits. The GX18B20 is available in MSOP8, SOP8, and 3-Pin TO-92, TO92S, TO92A packages.

Application Scenarios

Temperature control
Industrial systems
Consumer goods
Grain temperature measurement
Thermometers
Any thermal system

Product Attributes

Brand: GXCAS
Origin: BEIJING GALAXY-CAS TECHNOLOGY CO.,LTD

Technical Specifications

Feature	Specification
Interface	1-Wire
Serial Number	Independent 64-bit
Power Supply Voltage	2.5V~5.5V
Measuring Range	-55C to +125C (-67F to +257F)
Accuracy	0.4C from -10C to +85C
Resolution	User Selectable: 9 to 12 Bits
Conversion Time (Max)	750ms (for 12-bit)
Alarm Settings	User-Definable Nonvolatile (NV)
Packages	MSOP8, SOP8, 3-Pin TO-92, TO92S, TO92A

2504101957_GXCAS-GX18B20UH_C516771.pdf

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