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MAX31888: ±0.25°C Accurate 1-Wire Temperature Sensor Data Sheet (Rev. 0)11/17/2021PDF664K
MAX31888
±0.25°C Accurate 1-Wire Temperature Sensor
Highest Accuracy 1-Wire Temperature Sensor with high and low thresholds
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Overview
Features and Benefits
- High Accuracy and Precision
- ±0.25°C Accuracy from -20°C to +105°C
- ±0.65°C Accuracy from -40°C to +125°C
- Long Battery Life
- 1.7V to 3.6V Operating Voltage
- 68µA Operating Current During Measurement
- 0.6µA Standby Current
- Small Size
- 2mm x 2mm x 0.8mm, 6-Pin µDFN
- Safety and Compliance
- Unique ROM IDs Allow Device to be NIST Traceable
- High and Low Temperature Alarms
- Simple and Robust Digital Interface
- 1-Wire® Interface
- CRC (Cyclic Redundancy Check)
- Multi-Drop Capability
Product Details
The MAX31888 is a 1-Wire high precision, low power digital temperature sensor with ±0.25ºC accuracy from -20ºC to +105ºC for precision temperature monitoring. The MAX31888 operates at 68μA operating current during measurement and has 16-bit resolution (0.005ºC).
The sensor communicates with a microcontroller over a 1-Wire® bus that requires only one data line (and a ground reference) for communication. In addition, the sensor can derive power directly from the data line through “parasite power”, eliminating the need for an external power supply. Each MAX31888 has its own unique 64-bit registration number that is factory programmed into the chip. This unique 64-bit registration number acts as the node address in the case of a multi-drop 1-Wire® network. In multi-drop networks, optional GPIO pins can be used as address bits to identify each device's physical location.
The MAX31888 is available in a 6-pin µDFN package. The power supply voltage range is from 1.7V to 3.6V for external power supplies. The operating temperature range is from -40°C to +125°C.
Applications
- Precision Temperature Monitoring
- RTD Replacement
- Internet of Things (IoT) Sensors
- Cold Chain
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (2)
Documentation & Resources
Tools & Simulations
Software Development
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX31888ALT+ | Material Declaration | Reliability Data | 6-LFCSP-2X2X0.75 | |
| MAX31888ALT+T | Material Declaration | Reliability Data | 6-LFCSP-2X2X0.75 | |
| Wafer Fabrication Data |
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.