Difference between revisions of "DS18B20 1 - Wire Digital Thermometer Module"

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(Specifications)
(DC electrical characteristics)
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==DC electrical characteristics==
 
==DC electrical characteristics==
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{| class="wikitable"
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|-
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| align="center" style="background:#f0f0f0;"|'''Parameter'''
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| align="center" style="background:#f0f0f0;"|''''''
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| align="center" style="background:#f0f0f0;"|'''Min.'''
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| align="center" style="background:#f0f0f0;"|'''Typical'''
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| align="center" style="background:#f0f0f0;"|'''Max.'''
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| align="center" style="background:#f0f0f0;"|'''Unit'''
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|-
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| Working voltage||||3||5||5.5||VDC
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|-
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| Working current(VCC=5V,T=25℃)||||-||1||1.5||mA
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|-
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| Sampling interval||||1||-||-||s
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|-
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| Accuracy (-10~+85℃)||||-||-||±0.5||℃
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|-
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| Accuracy (-55~+125℃)||||-||-||±2||℃
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|-
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| Logic input low level VIL||||-0.3||-||0.8||V
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|-
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| Logic input high level VIH||||2.2||-||5.5/VCC+0.3||V
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|}
  
 
==AC electrical characteristics==
 
==AC electrical characteristics==

Revision as of 02:14, 27 May 2014

Overview

Digital temperature sensor.jpg

DS18B20 is a single-bus digital temperature sensor with features of ultra-small size, wide range of applicable voltage and measurable temperature and high resolution, etc. , which can be applied to temperature control, industrial systems, consumer products, thermometers or any thermal measurement system.

Features

1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market. IM120710012_2.jpg

2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock. im120710012-6.jpg

3. Rotatable detecting direction for better adaption. im120710012-7.jpg

Specifications

PCB size 33.2mm X 14.0mm X 1.6mm
Working voltage 3.3 or 5V DC
Operating voltage 3.3 or 5V DC
Measurable range -55~+125℃
Measurement resolution 9~12bits(programmable)
Compatible interfaces 2.54 3-pin interface and 4-pin Grove interface(1)

DC electrical characteristics

Parameter ' Min. Typical Max. Unit
Working voltage 3 5 5.5 VDC
Working current(VCC=5V,T=25℃) - 1 1.5 mA
Sampling interval 1 - - s
Accuracy (-10~+85℃) - - ±0.5
Accuracy (-55~+125℃) - - ±2
Logic input low level VIL -0.3 - 0.8 V
Logic input high level VIH 2.2 - 5.5/VCC+0.3 V

AC electrical characteristics

Instruction

Demo

Download

Useful Links