![DS18B20 Temperature Sensor[FAQ+Video]: Circuit, Equivalents,and Pinout](https://assets.zupyak.com/thumbnail/488455/fc44c2b4-badc-fb7b-e1c9-e2f1d7e2cb9f.jpg?width=649)
DS18B20 Description
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.
DS18B20 Applications
- Consumer Products
- Industrial Systems
- Thermally Sensitive Systems
- Thermometers
- Thermostatic Controls
DS18B20 Features
1. Unique 1-Wire® Interface Requires Only One Port Pin for Communication
2. 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
3. Parasitic Power Mode Requires Only 2 Pins for Operation (DQ and GND)
4. Simplifies Distributed Temperature-Sensing Applications with Multidrop Capability
Each Device Has a Unique 64-Bit Serial Code Stored in On-Board ROM
5. Flexible User-Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command Identifies Devices with Temperatures Outside Programmed Limits
6. Available in 8-Pin SO (150 mils), 8-Pin µSOP, and 3-Pin TO-92 Packages
DS18B20 Pinout
DS18B20 Manufacturer
Maxim Integrated provides ease of design and speeds time to market, through analog integration. The company's analog ICs offer extra features and functionality carefully designed to streamline circuits and simplify the design. Look to Maxim for solutions for consumer electronics, personal computers and peripherals, mobile devices, wireless and fiber communications, test equipment, instrumentation, video displays, and automotive applications. Maxim’s analog and mixed-signal solutions include data converters, interface circuits, power, RF wireless circuits, clocks and oscillators, microcontrollers (MCUs), operational amplifiers (op-amps), and sensors.
DS18B20 Equivalents
DS18B20 Alternatives
Thermocouple, TMP100, LM75, DHT11, SHT15, LM35DZ, TPA81, D6T
The following link will tell you more details about DS18B20
https://www.utmel.com/components/ds18b20-temperature-sensor-faq-video-circuit-equivalents-and-pinout?id=1902
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