Alternative Parts


Features and Benefits

  • 12-bit Temperature-to-digital Converter
  • B-Grade Accuracy ±1.0°C from 0°C to 70°C
  • A-Grade Accuracy ±2.0°C from –25°C to 100°C
  • SMBus-/I2C- Compatible Interface
  • Operation from −55°C to +125°C
  • Operation from 2.7 V to 5.5 V
  • Overtemperature Indicator
  • Shutdown Mode for Low Power Consumption
  • Power Consumption 79 μW Typically at 3.3 V
  • Small, Low Cost 8-pin MSOP in Pb-Sn and Pb-free Packages
  • Standard 8-pin SOIC Pb-free Package

Product Details

The ADT75 is a complete temperature monitoring system in 8-lead MSOP and SOIC packages. It contains a band gap temperature sensor and 12-bit Aanalog-to-digital converter (ADC) to monitor and digitize the temperature to a resolution of 0.0625°C. The ADT75 is pin and register compatible with the LM75 and AD7416.

The ADT75 is specified for operation at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the average supply current is typically 200 μA.

The ADT75 offers a shutdown mode that powers down the device and this mode gives a shutdown current of typically 3 μA. The ADT75 is rated for operation over the –55°C to +125°C temperature range.

The A0, A1, and A2 pins are available for address selection. The OS/ALERT pin is an open-drain output that becomes active when temperature exceeds a programmable limit. The OS/ALERT pin can operate in either comparator or interrupt mode.

Product Highlights

  1. On-chip temperature sensor allows an accurate measurement of the ambient temperature. The measurable temperature range is −55°C to +125°C.
  2. Supply voltage is 2.7 V to 5.5 V.
  3. Space-saving, 8-lead MSOP and 8-lead SOIC.
  4. Temperature accuracy is ±1°C maximum.
  5. Temperature resolution is 0.0625°C.
  6. Shutdown mode reduces the current consumption to 3 μA typical.
  7. Connect up to eight ADT75s to a single SMBus/I2C bus.


  • Isolated Sensors
  • Environmental Control Systems
  • Computer Thermal Monitoring
  • Thermal Protection
  • Industrial Process Control
  • Power-system Monitors
  • Hand Held Applications

Product Lifecycle icon-recommended 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 (3)

Tools & Simulations

IBIS Model

Reference Designs (1)

Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through To order more than two, please purchase through one of our listed distributors.

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.