DS1822+T&R by Analog Devices

Econo 1-Wire Digital Thermometer

Status: Active
Series: DS1822
RoHS: Unknown
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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.

Prices starting from US$3.23


Distributor Starting From Stock
Logo for element14 element14 US$3.46
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Logo for Newark Electronics Newark Electronics US$3.81
-
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Features

Unique 1-Wire® Interface Requires Only One Port Pin for Communications Can Be Powered from Data Line Power-Supply Range is 3.0V to 5.5V
Can Be Powered from Data Line
Power-Supply Range is 3.0V to 5.5V
Reduced Component Count with Integrated Temperature Sensor and Interface Requires No External Components Measures temperatures from -55°C to +125°C (-67°F to +257°F) ±2.0°C Accuracy from -10°C to +85°C Thermometer Resolution is User-Selectable from 9 to 12 Bits Converts Temperature to 12-Bit Digital Word in 750ms (max)
Requires No External Components
Measures temperatures from -55°C to +125°C (-67°F to +257°F)
±2.0°C Accuracy from -10°C to +85°C
Thermometer Resolution is User-Selectable from 9 to 12 Bits
Converts Temperature to 12-Bit Digital Word in 750ms (max)
Simplifies Distributed Temperature Sensing with Multidrop Capability Each Device Has a Unique 64-Bit Serial Code Stored in an On-Board Device Flexible, User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies Devices with Temperatures Outside Programmed Limits Software compatible with the DS18B20
Each Device Has a Unique 64-Bit Serial Code Stored in an On-Board Device
Flexible, User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies Devices with Temperatures Outside Programmed Limits
Software compatible with the DS18B20
Applications Include Thermostatic Controls, Industrial Systems, Consumer Products, Thermometers, or Any Thermally Sensitive System

Specifications

Sensor Type Local
# Channels One
Interface 1-Wire
Accuracy (±°C) 2
Parasite Pwr. Yes
Temp. Thresh. Programmable (NV)
Temp. Resolution (bits) 9101112
Oper. Temp. (°C) -55 to +125
Package/Pins SOIC (N)/8TO92/3
BudgetaryPrice (See Notes) 2.02


DS1822+T&R Sensors & Transducers by Analog Devices

TEMPERATURE SENSOR 2DEG C TO-92-3

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

IC Output Type Digital
Sensing Accuracy Range ± 2°C
Sensing Temperature Min -55°C
Sensing Temperature Max 125°C
Sensor Case Style TO-92
No. of Pins 3Pins
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Product Range -
Automotive Qualification Standard -
MSL -
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

TEMPERATURE SENSOR, 2DEG C, TO-92-3 | element14
Temperature Sensor, 2Deg C, To-92-3 | Newark Electronics

Frequently Asked Questions

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Is the DS1822+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1822+T&R have stock available?

Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for DS1822+T&R .

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