AT30TS750A-XM8M-T

AT30TS750A is a complete, precise temperature monitoring device designed for use in a variety of applications that require the measuring of local temperatures as an integral part of the system's function and/or reliability. The AT30TS750A device combines a high-precision digital temperature sensor, programmable high and low temperature alarms, and a 2-wire I2C and SMBus (System Management Bus) compatible serial interface into a single, compact package The temperature sensor can measure temperatures over the full -55°C to +125°C temperature range and has a typical accuracy as precise as ±0.5°C from 0°C to +85°C. The result of the digitized temperature measurements are stored in one of the AT30TS750A's internal registers, which is readable at any time through the device's serial interface. The AT30TS750A utilizes flexible, user-programmable internal registers to configure the temperature sensor's performance and response to high and low temperature conditions. The device also contains a set of Nonvolatile Registers to retain the configuration and temperature limit settings even after the device has been power cycled, thereby eliminating the need for the device to be reconfigured after each Power-up operation. This additional flexibility permits the device to run self-contained and not rely upon a Host controller for device configuration. A dedicated alarm output activates if the temperature measurement exceeds the user-defined temperature and fault count limits. To reduce current consumption and save power, the AT30TS750A features a Shutdown mode that turns off all internal circuitry except for the internal Power-On Reset (POR) and serial interface circuits. The device can also be configured to power-up in the Shutdown mode to ensure that the device remains in a low-power state until the user wishes to perform temperature measurements.

• Single 1.7V to 5.5V supply
• Measures temperature from -55°C to +125°C
• Highly accurate temperature measurements requiring no external components
  • ±0.5°C accuracy (typical) over the 0°C to +85°C range
  • ±1.0°C accuracy (typical) over the -25°C to +105°C range
  • ±2.0°C accuracy (typical) over the -40°C to +125°C range
• User-configurable resolution
• 9 to 12 bits (0.5°C to 0.0625°C)
• User-configurable high and low temperature limits
• Nonvolatile registers to retain user-configured or pre-defined power-up defaults
• Register locking to prevent erroneous misconfiguration
• Register lockdown for permanent, non-changeable device configuration
• ALERT output pin for indicating temperature alarms
• 2-wire I2C and SMBus™ compatible serial interface
  • Supports SMBus Timeout
  • Supports SMBus Alert and Alert Response Address (ARA)
  • Selectable addressing allows up to eight devices