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Temperature sensor HTCSEMI HT18B20ARTZ with programmable resolution and single data line communication

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Temperature sensor HTCSEMI HT18B20ARTZ with programmable resolution and single data line communication

Temperature Range : -55℃~+125℃

Interface : Single-bus

Temperature Resolution : 12bit

Voltage - Supply : 3V~5.5V

Description : -55℃~+125℃ Single-bus 3V~5.5V TO-92 Analog and Digital Output RoHS

Mfr. Part # : HT18B20ARTZ

Model Number : HT18B20ARTZ

Package : TO-92

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Product Overview

The HT18B20A is a programmable resolution 1-Wire digital thermometer compatible with the DS18B20. It offers 9-bit to 12-bit Celsius temperature measurements with a user-programmable alarm function. Communicating via a single data line, it can also derive power directly from the data line (parasite power), eliminating the need for an external power supply. Each HT18B20A features a unique 64-bit serial code, enabling multiple devices on the same 1-Wire bus. This makes it suitable for applications such as HVAC environmental controls, building and equipment temperature monitoring, and process monitoring systems.

Product Attributes

Brand: Not specified
Origin: Not specified
Material: Not specified
Color: Not specified
Certifications: Not specified

Technical Specifications

Parameter	Symbol	Min	Max	Unit	Notes
Supply voltage (from power supply element)	UDD	-0.5	6.0	V
Ambient temperature	Ta	-60	125	C
Supply voltage	UDD	3.0	5.5	V
Supply voltage (on external pull-up resistor) in supply mode on DQ (UDD = 0 V)	UPU	3.0	5.5	V	1, 2
Low level input voltage at UDD = 5 V	UIL	-0.3	0.8	V	1, 3
Low level input voltage at UDD = 3 V	UIL	-0.3	0.5	V	1, 2, 3
High level input voltage in supply mode on VDD pin	UIH	2.2	UDD+0.3	V	1, 4
High level input voltage in supply mode on DQ (UDD = 0 V)	UIH	3.0	UDD+0.3	V	1, 2, 4
Cycle time of EEPROM record	tWR		10	ms	2
Operating ambient temperature	Ta	-55	125	C
Consumption current	IDD		1.0	A	251 C, at 0 V UI 0.4 V or 1.1 V UI UDD-0.3 V
Dynamic Consumption current	IODD		1500	A	251 C, at UDD = 5 V
Low level output current	IOL		4.0	mA	at UO = 0.4 V
Input current on DQ pin (Line driver off)	IDQ		5	A	2510 C, UDD = 5 V
Consumption current	IDD	0.75		A	2510 C, at 0 V UI 0.4 V or 0.75 V UI UDD-0.3 V
Temperature measurement drift	T	0.2		C	After 1000 hours at 125 C, UDD = 5.5 V
Temperature measurement error	tERR	0.5		C	0 to 85 C
Temperature measurement error	tERR	2.0		C	-55 to 125 C

2409291004_HTCSEMI-HT18B20ARTZ_C2998010.pdf

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