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Temperature Sensor GXCAS GX18B20U Digital Thermometer with Wide Operating Range and Programmable Resolution

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Temperature Sensor GXCAS GX18B20U Digital Thermometer with Wide Operating Range and Programmable Resolution

Temperature Range : -55℃~+125℃

standby current : 1uA

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 # : GX18B20U

Model Number : GX18B20U

Package : MSOP-8

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GX18B20 Programmable Resolution 1-Wire Digital Thermometer

The GX18B20 is a digital thermometer that offers user-selectable temperature measurements from 9 to 12 bits in Celsius. It features an alarm function with nonvolatile user-programmable upper and lower trigger points. Communication is handled via a 1-Wire bus, requiring only one data line and ground. The device can operate within a supply voltage range of 2.5V to 5.5V and can derive power directly from the data line (parasite power mode), eliminating the need for an external power supply. Each GX18B20 possesses a unique 64-bit serial code, enabling multiple devices to function on the same 1-Wire bus, simplifying distributed temperature-sensing applications. It boasts an operating temperature range of -55C to +125C and an accuracy of 0.4C from -10C to +85C. The conversion time to a 12-bit digital word is a maximum of 750ms.

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	2.5V~5.5V (can be powered by data line)
Measuring Range	-55C to +125C (-67F to +257F)
Accuracy	0.4C from -10C to +85C
Resolution	User Selectable (9 to 12 Bits)
Conversion Time	750ms (Max for 12-Bit)
Alarm Settings	User-Definable Nonvolatile (NV)
Package Options	MSOP8, SOP8, 3-Pin TO-92, TO92S, TO92A, TO-92WS
Temperature Register Format	16-bit sign-extended twos complement
Default Resolution at Power-up	12-bit
Power-on Reset Value (Temperature Register)	+85C

2504101957_GXCAS-GX18B20U_C472475.pdf

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