The MAX31725MTA+ is an ultra accurate ±0.5°C local temperature sensor in 8 pin TDFN package. It accurately measures temperature and provide an overtemperature alarm/interrupt/shutdown output. This device converts temperature measurements to digital form by using high resolution, sigma delta, analogue to digital converter (ADC). Accuracy is ±0.5°C from -40°C to 105°C and ±0.7°C from -55°C to 150°C. Communication is through an I2C compatible 2-wire serial interface. The I2C serial interface accepts standard write byte, read byte, send byte and receive byte commands to read the temperature data and configure behaviour of open-drain overtemperature shutdown output. The MAX31725 has three address select lines with total of 32 available addresses. The sensors has 2.5V to 3.7V supply voltage range, low 600µA supply current and lock-up protected I2C- compatible interface.
Feature
- Supply voltage range from 2.5V to 3.7V
- Operating temperature range from -55°C to 150°C
- High accuracy and low voltage operation aids designers in meeting error and power budgets
- 16bit (0.00390625°C) temperature resolution and 44ms conversion time
- One shot and shutdown modes help reduce power usage
- Temperature conversion noise of 0.0625°C and temperature data resolution of 16bit
- Extended temperature range enables measurements in high temperature systems (measures up to 150°C)
- Digital functions make integration easier into any system
- Selectable timeout prevents bus lock-up (default enabled)
- Separate open-drain OS output operates as interrupt or comparator/thermostat output
- Industrial; Networking; Servers; Telecom
Applications
- CSUs/DSUs
- Data Networking
- Data Routers
- PCI Cards
- Telecommunications
