MSKSEMI DS18B20-MS

The DS18B20 digital thermometer provides 9 to 12-bit resolution temperature measurements, with programmable nonvolatile memory cells for upper and lower temperature alarm thresholds. The DS18B20 communicates with a host processor using the 1-Wire protocol, requiring only one signal line and one ground line. Its temperature measurement range is -55°C to +125°C (-67°F to +257°F), with an accuracy of ±0.4°C over the -10°C to 70°C range. In addition, it can operate in parasite power mode, drawing power directly from the signal line, eliminating the need for an external power supply. Each DS18B20 has a globally unique 64-bit serial number, allowing multiple DS18B20 devices to be connected in a network on the same 1-Wire bus, with a single processor capable of controlling numerous DS18B20 units distributed across a large area. This networking capability is particularly well-suited for applications such as HVAC environmental control, building and equipment temperature monitoring, grain storage temperature measurement, industrial thermometry, and process monitoring and control.

• Single-wire interface requiring only one port pin for communication
• Each device has a globally unique 64-bit serial number
• Multi-point distributed temperature sensing capability
• No external components required
• Parasite power supply via data line
• Supply voltage range: 2.5V ~ 5.5V
• Measurement range: -55°C to +125°C (-67°F to +257°F)
• Accuracy ±0.4°C over -10°C ~ 70°C range
• Selectable 9–12 bit temperature resolution
• Temperature conversion time less than 750ms at maximum 12-bit resolution
• User-definable non-volatile temperature alarm settings
• Alarm search command identifies and flags devices exceeding programmed temperature limits
• Superior ESD protection: HBM 8000V, MM 800V
• Available in SMD MSOP8, SOP8 packages and 3-pin TO-92, TO-92S packages

• Temperature control
• Industrial systems
• Consumer products
• Grain temperature monitoring
• Thermometers
• Any heat-sensing system