DS18B20-SL+T&R by Analog Devices

Programmable Resolution 1-Wire Digital Thermometer

Status: Active
Series: DS18B20
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems. How to Spatially Index 1-Wire® Sensors Using the MAXREFDES131 and DS18B20 FAQs: DS18B20

Prices starting from US$3.38


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$3.71
1,100
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Logo for element14 element14 US$3.63
1,100
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Logo for Schukat Electronic Schukat Electronic US$5.97
-
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Features

Unique 1-Wire® Interface Requires Only One Port Pin for Communication
Reduce Component Count with Integrated Temperature Sensor and EEPROM Measures Temperatures from -55°C to +125°C (-67°F to +257°F) ±0.5°C Accuracy from -10°C to +85°C Programmable Resolution from 9 Bits to 12 Bits No External Components Required
Measures Temperatures from -55°C to +125°C (-67°F to +257°F)
±0.5°C Accuracy from -10°C to +85°C
Programmable Resolution from 9 Bits to 12 Bits
No External Components Required
Parasitic Power Mode Requires Only 2 Pins for Operation (DQ and GND)
Simplifies Distributed Temperature-Sensing Applications with Multidrop Capability Each Device Has a Unique 64-Bit Serial Code Stored in On-Board ROM
Each Device Has a Unique 64-Bit Serial Code Stored in On-Board ROM
Flexible User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies Devices with Temperatures Outside Programmed Limits
Available in 8-Pin SO (150 mils), 8-Pin µSOP, and 3-Pin TO-92 Packages

Specifications

Sensor Type Local
# Channels One
Interface 1-Wire
Accuracy (±°C) 0.5
Parasite Pwr. Yes
Temp. Thresh. Programmable (NV)
Temp. Resolution (bits) 9101112
Oper. Temp. (°C) -55 to +125
Package/Pins SOIC (N)/8TO92/3UMAX/8
BudgetaryPrice (See Notes) 2.3


DS18B20-SL+T&R Maxim Integrated Parts by Analog Devices

TEMPERATURE SENSOR 0.5DEG C TO-92-3

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

The DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central micro- processor. In addition, the DS18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.

Specifications

IC Output Type Open Drain
Sensing Accuracy Range ± 0.5°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, 0.5Deg C, To-92-3 | Newark Electronics
TEMPERATURE SENSOR, 0.5DEG C, TO-92-3 | element14
Dig. Dig. Therm. 1-Wire +-0,5°C TO92 | Schukat Electronic

Frequently Asked Questions

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Is the DS18B20-SL+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14, Farnell and Schukat Electronic have stock available or on a lead time for DS18B20-SL+T&R .

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