DS1822 - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

DS1822
Manufacturer

Maxim Integrated
ChipWorker Part#

CW128139533
Category

Temperature Sensor
RoHS

Lead free / RoHS Compliant
Description

Temp Sensor Digital Serial (1-Wire) 3Pin TO-92
Documentation

Datasheet

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DS1822 Specifications

Attribute	Attribute Value

Part Number	DS1822
Manufacturer	Maxim Integrated
ChipWorker Part#	CW128139533
Category	Temperature Sensor
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	3 Pin
Case/Package	TO-92-3
Supply Voltage (DC)	5.00 V
Supply Current	1.00 mA
Number of Bits	12 Bit
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	55 ℃
Accuracy	±2 ℃
Supply Voltage	3V ~ 5.5V
Supply Voltage (Max)	5.5 VDC
Supply Voltage (Min)	3 VDC
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Operating Temperature	-55℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Contains Lead
ECCN Code	EAR99

Product Description

Description
The DS1822 is a digital thermometer with ±2°C accuracy over a -10°C to +85°C range. Data is read out over a 1-Wire® serial bus in 2"s complement format with 9 to 12 bits of resolution (user-programmable).
The DS1822 offers thermostatic functionality with over-temperature (TH) and under-temperature (TL) user-programmable setpoints stored in on-chip EEPROM. An internal flag is set when the measured temperature is greater than TH or less than TL. If thermostatic operation is not required, the two bytes of EEPROM reserved for TH and TL may be used for general-purpose nonvolatile storage.
Each DS1822 features a unique and unchangeable 64-bit silicon serial number, which serves as the bus address for the sensor. This allows multiple DS1822 devices to coexist on the same 1-Wire bus. The DS1822 may be locally powered via a 3.0V to 5.5V supply, or power can be derived from the 1-Wire data line ("parasite power").
The DS1822 is offered in 3-pin TO-92 (DS1822) and 150mil 8-pin SO (DS1822Z) packages. In addition, the DS1822 is available in a parasite-power only version, the DS1822-PAR. Also available is the high-precision DS18B20, which provides ±0.5°C accuracy and is software-compatible with the DS1822.

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