Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Sensor Type | Digital temperature sensor |
| Interface | 1-Wire |
| Resolution | Programmable 9 to 12 bit |
| Measurement Range | -55 °C to +125 °C |
| Supply Options | Local supply or parasite power |
| Orderable Package | SOIC version, tape and reel |
| Product Status | Production on current Analog Devices product page |
Product Overview
DS18B20Z+T&R is the surface-mount tape-and-reel orderable version of the DS18B20 programmable-resolution 1-Wire digital thermometer family, originally from Maxim Integrated and now supported by Analog Devices. Each device provides a unique 64-bit serial code so multiple sensors can share one 1-Wire bus.
The device is attractive when wiring simplicity and digital temperature measurement matter more than very high sampling speed. System design should account for conversion time, bus pull-up behavior, cable length and parasite-power current requirements.
Technical Specifications
| Group | Parameter | Value / Condition |
|---|---|---|
| Sensor | Temperature range | -55 °C to +125 °C |
| Conversion | Resolution | Programmable 9 to 12 bit |
| Interface | Bus | 1-Wire digital interface |
| Addressing | Device identity | Unique 64-bit serial code |
| Power | Modes | External supply or parasite power |
| Package | Orderable variant | Surface-mount SOIC family version |
| Packing | Format | Tape and reel |
Functional Highlights
Multiple sensors can share a single data line
The unique serial number allows individually addressed devices on the same 1-Wire network, reducing wiring in distributed temperature-sensing applications.
Programmable resolution trades conversion time against granularity
The host can select 9-, 10-, 11- or 12-bit conversion resolution according to response-time and measurement-resolution requirements.
Applications / Application Fit
- Distributed temperature monitoring
- Thermostatic control and thermal protection logic
- Embedded equipment requiring individually addressable digital sensors
Design Considerations
Select the 1-Wire pull-up and bus topology for the actual cable length, number of devices and noise environment.
If parasite power is used, verify that the bus can provide the required strong pull-up during temperature conversion.
Confirm the exact package footprint for the Z orderable variant before PCB release.
Related Engineering Resources
- Analog Devices DS18B20 official product page — current manufacturer-controlled product information, orderable models and datasheet.
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
To request a quotation, provide the manufacturer part number, required quantity, destination, target Date Code if applicable, and any testing or inspection requirements.
