MAX31730
PRODUCTION3-Channel Remote Temperature Sensor
Triple Remote Temperature Sensor Provides Accurate Measurements and Simplifies Overtemperature Notification
- Part Models
- 4
- 1ku List Price
- Starting From $0.83
Overview
- Highest Temperature Register Simplifies and Speeds Overtemperature Notification
- Accurate Temperature Measurement Helps Designers Meet Error Budgets
- 12-Bit, 0.0625°C Resolution
- ±1°C Remote Temperature-Measurement Accuracy (0°C to +100°C)
- -64°C to +150°C Remote Temperature-Measurement Range
- Resistance Cancellation for Remote Channels
- Compensation for Low Beta Transistors
- Programmable Temperature Thresholds
- Integration Reduces Cost, Board Area, Power-Supply Current, and Slave Address Usage
- One Local and Three Remote Temperature-Sensing Channels
- Eight Selectable Slave Addresses
- Flexible SMBus/I2C Bus Interfaces to a Variety of Microcontrollers
The MAX31730 temperature sensor monitors its own temperature and the temperatures of three external diode-connected transistors. The operating supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates for high series resistance in circuit-board traces and the external thermal diode, while beta compensation corrects for temperature-measurement errors due to low-beta sensing transistors.
All temperature channels have programmable temperature thresholds. When the measured temperature of a channel crosses the respective threshold, a status bit is set in the thermal status registers and the open-drain active-low THERM output asserts. A highest temperature register allows the master to obtain the temperature of the hottest channel.
The 2-wire serial interface accepts SMBus protocols (write byte, read byte, send byte, and receive byte) for reading the temperature data and programming the temperature thresholds. Any one of eight available slave addresses can be selected using the address selection input (ADD), which can be connected to ground or connected to a grounded resistor.
The MAX31730 supports 3.0V to 3.6V operation and is specified for a -40°C to +125°C operating temperature range and is available in a 10-pin µMAX® and a 12-pin, 3mm x 3mm TDFN package.
Applications
- Communications Equipment
- CPU, FPGA, and ASIC Die Temperature Monitoring
- Servers
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
Video 1
Device Drivers 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 |
|---|---|---|---|
| MAX31730ATC+ | Thin Dual Flatpack No Leads | ||
| MAX31730ATC+T | Thin Dual Flatpack No Leads | ||
| MAX31730AUB+ | 10-MINI_SO-N/A | ||
| MAX31730AUB+T | 10-MINI_SO-N/A |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 27, 2024 - 2400 ASSEMBLY |
||
| MAX31730ATC+ | PRODUCTION | |
| MAX31730ATC+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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Tools & Simulations
Software Development 1
IBIS Model 1
Evaluation Kits
Evaluation Kit for the MAX31730
Evaluation Kit for the MAX31730
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