Part Details for DS18S20 by Dallas Semiconductor
Results Overview of DS18S20 by Dallas Semiconductor
- Distributor Offerings: (3 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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DS18S20 Information
DS18S20 by Dallas Semiconductor is a Temperature Sensor.
Temperature Sensors are under the broader part category of Sensors/Transducers.
Sensors and transducers detect and measure physical quantities like temperature, pressure, and force, converting them into electrical signals for various applications. Read more about Sensors/Transducers on our Sensors/Transducers part category page.
Price & Stock for DS18S20
| Part # | Distributor | Description | Stock | Price | Buy | |
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Bristol Electronics | 80 |
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ComSIT USA | HIGH-PRECISION 1-WIRE DIGITAL THERMOMETER Serial Switch/Digital Sensor, 9 Bit(s), 0.50Cel, Rectangular, 3 Pin, Through Hole Mount ECCN: EAR99 RoHS: Compliant |
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RFQ | |
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Vyrian | Sensors & Transducers | 3440 |
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RFQ |
Part Details for DS18S20
DS18S20 CAD Models
DS18S20 Part Data Attributes
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DS18S20
Dallas Semiconductor
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Datasheet
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DS18S20
Dallas Semiconductor
Serial Switch/Digital Sensor, 9 Bit(s), 0.50Cel, Round, 3 Pin, Through Hole Mount, TO-92, 3 PIN
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| Rohs Code | No | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | DALLAS SEMICONDUCTOR | |
| Package Description | TO-92, 3 PIN | |
| Reach Compliance Code | unknown | |
| Accuracy-Max (Cel) | 0.5 Cel | |
| Housing | PLASTIC | |
| JESD-609 Code | e0 | |
| Mounting Feature | THROUGH HOLE MOUNT | |
| Number of Bits | 9 | |
| Number of Terminals | 3 | |
| Operating Current-Max | 1 mA | |
| Operating Temperature-Max | 125 °C | |
| Operating Temperature-Min | -55 °C | |
| Output Interface Type | 1-WIRE INTERFACE | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Equivalence Code | SIP3,.1,50 | |
| Package Shape/Style | ROUND | |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL | |
| Supply Voltage-Max | 5.5 V | |
| Supply Voltage-Min | 3 V | |
| Surface Mount | NO | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Termination Type | SOLDER |
DS18S20 Frequently Asked Questions (FAQ)
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The DS18S20 has an accuracy of ±0.5°C from -10°C to +85°C, and ±1°C from -55°C to -10°C and +85°C to +125°C.
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You can connect multiple DS18S20 sensors to a single bus by connecting the VDD, GND, and DQ pins of each sensor in parallel. Each sensor has a unique 64-bit ROM code that allows the master device to address and read the temperature data from each sensor individually.
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The maximum cable length for the DS18S20 is approximately 100 meters, but this can be affected by the quality of the cable, the noise environment, and the bus speed. It's recommended to use a twisted pair cable with a shield to minimize noise and ensure reliable communication.
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In parasite power mode, the DS18S20 derives its power from the data line. To handle this mode, you need to ensure that the data line is pulled high to VCC through a resistor (typically 4.7kΩ) and that the master device provides a strong pull-up to maintain the voltage level. You should also avoid using a pull-down resistor on the data line.
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The conversion time for the DS18S20 is approximately 750ms for a 12-bit temperature reading, 375ms for a 11-bit reading, and 187.5ms for a 9-bit reading. The conversion time can be affected by the bus speed and the number of sensors on the bus.