SME TEMPERATURE SENSOR DS18B20

SKU: SME TEMPERATURE SENSOR DS18B20

BRAND: Communica


3,3-5VDC DS18B20 Temperature Sensor Breakout Board 33.2x14x1.6mm

Overview

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

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

Specification

  • General :
    • PCB size : 33.2x14.0x1.6mm
    • Working voltage : 3.3 or 5VDC
    • Operating voltage : 3.3 or 5VDC
    • Measurable range : -55~+125°C
    • Measurement resolution : 9~12bits(programmable)
    • Compatible interfaces 2.54 3-pin interface and 4-pin Grove interface(S for digital input/output port, V and G for voltage at the common collector and ground respectively)
  • DC Electrical Characteristics :
    • Working Voltage : 3VDC (Min.) - 5VDC (Typical) - 5.5VDC (Max.)
    • Working Current (VCC=5V,T=25°C) : 1mA (Typical) - 1.5mA (Max.)
    • Sampling Interval : 1s (Min.)
    • Accuracy :
      • (-10~+85°C) : ±0.5 (Max.)
      • (-55~+125°C) : ±2 (Max.)
    • Logic Input low level VIL : 0.3V (Min.) - +0.8V (Max.)
    • Logic Input high level VIH : 2.2V (Min.) - 5.5/VCC+0.3V (Max.)
  • AC Electrical Characteristics :
    • Temperature conversion time (tCONV) :
      • 9-bit accuracy : 93.75ms (Max.)
      • 10-bit accuracy : 187.5ms (Max.)
      • 11-bit accuracy : 375ms (Max.)
      • 12-bit accuracy : 750ms (Max.)
    • Time for strong pullup on (tSPON) : 10us (Max.)
    • Time slot (tSLOT) : 60us (Min.) - 120us (Max.)
    • Recovery time (tREC) : 1us (Min.)
    • Write 0 low time (tLOW0) : 60us (Min.) - 20us (Max.)
    • Write 1 low time (tLOW1) : 1us (Min.) - 5us (Max.)
    • Read data valid (tRDV) : 15us (Max.)
    • Reset time high (tRSTH) : 480us (Min.)
    • Reset time low (tRSTL) : 480us (Min.)
    • Presence-detect high (tPDHIGH) : 15us (Min.) - 60us (Max.)
    • Presence-detect low (tPDLOW) : 60us (Min.) - 240us (Max.)
    • Capacitance (CIN/OUT) : 25pF (Max.)
Instruction : Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. The scratchpad memory contains the 2-byte temperature register that stores the data output from the temperature sensor. In addition, the scratchpad provides access to direct temperature alarm trigger registers (TH and TL) and the 1-byte configuration register. The configuration register allows the user to set the resolution of the temperature-to-digital conversion to 9, 10, 11, or 12 bits. The TH, TL, and configuration registers are nonvolatile (EEPROM), so they will retain data when the device is powered down.