MAX31825
RECOMMENDED FOR NEW DESIGNS1-Wire® Temperature Sensor with ±1ºC Accuracy
Industry-Leading 1-Wire Temperature Sensor with Address and Alarm Pin
- Part Models
- 2
- 1ku List Price
- Starting From $1.93
Overview
- 1-Wire Interface Requires Only One Port Pin for Communication
- Unique 64-bit Serial Code Stored in an On-Board ROM
- External Resistor Selects Address for Location Identification
- Can Be Powered From Data Line
- Power Supply Range is 1.6V to 3.6V (External Power), 2.3V to 3.6V (Parasite Power)
- Measures Temperatures from -45°C to +145°C
- Better Than ±1°C Accuracy from 0°C to +70°C
- Better Than ±1.75°C Accuracy from -45°C to +145°C
- Alarm Output for Detection of Temperature Faults
- Temperature Resolution is Selectable from 8 to 12 Bits
- Converts Temperature to 10-bit Digital Word in 80ms (max)
- User-Definable Alarm Settings
- 4kV HBM ESD Protection
- Available in a 6-Bump WLP
The MAX31825 temperature sensor provides 8-bit to 12-bit Celsius temperature measurements with better than ±1°C accuracy from 0°C to +70°C and ±1.75°C from -45°C to +145°C.
The sensor communicates over a 1-Wire® bus that, by definition, requires only one data line (and ground) for communication with a microcontroller. In addition, the sensor can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply.
Each sensor has a unique 64-bit serial code, which allows multiple MAX31825 ICs to reside on the same 1-Wire bus. In addition, it includes two address input pins that, using an external resistor and pin-strapping, allow one of 64 different addresses to be selected to identify each sensor's physical location. Therefore, it is simple to use one microprocessor to control many devices distributed over a large area.
The MAX31825 is available in a 6-bump WLP package. The power supply voltage range is from 1.6V to 3.6V for external power supplies, and from 2.3V to 3.6V for parasite power. The operating temperature range is from -45°C to +145°C.
Applications
- Communications Equipment
- Consumer Equipment
- Data Center Equipment
- Industrial Equipment
Documentation
Data Sheet 1
Video 1
3rd Party Solutions 1
Analog Dialogue 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX31825ANT+ | 6-WLCSP-N/A | ||
| MAX31825ANT+T | 6-WLCSP-N/A |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
Software Development 1
Evaluation Kits
Evaluation System for the MAX31825
Resources
Evaluation System for the MAX31825
Resources
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