7Semi TMP117 Accurate Digital Temperature Sensor Breakout I2C

Overview

The module is based on the TMP117 high-precision digital temperature sensor IC, a high-accuracy, low-drift temperature sensor designed for precision measurement applications.

• Measures:

  • Temperature only

   

• Output:

  • High-resolution digital data via I2C

   

• Designed for:

  • Industrial-grade and precision thermal monitoring

   

It is one of the most accurate digital temperature sensors available in this category.

Working Principle

Precision Bandgap Temperature Sensing

• Uses an advanced bandgap-based sensing architecture

• Temperature changes alter semiconductor characteristics

Highg>precision ADC converts signal digital output

Includes:

• Factory calibration

• Linearization

Provides direct, highly accurate temperature readings.

Measurement Characteristics

Temperature Range

• 55C to +150C

Accuracy

• 0.1C (typical)

• 0.2C max over wide range

Resolution

• 16-bit resolution

• Precision up to 0.0078C per LSB

Ideal for high-precision applications.

Electrical Characteristics

• Supply voltage: 1.8V to 5.5V

• Low power consumption:

  • ~150 A (active)

  <

  Communication Interface

  • Interface: I2C (two-wire)

  • Default address: 0x48 (configurable)

   

  Supports multiple sensors on same bus.

  Internal Features

  Factory Calibration

  • Individually calibrated during manufacturing

  • No external calibration required

   

  High Stability & Low Drift

  • Very low long-term drift

  • Maintains accuracy over time

   

  Programmable Alert Function

  • Configurable:

    • High/low temperature limits

     

  • Generates interrupt signal

   

  Conversion Modes

  • Continuous conversion

  • One-shot mode (on-demand measurement)

   

  Averaging & Filtering

  • Built-in averaging improves:

    • Noise pi

  Operating Behavior

  Continuous Monitoring

  • Periodically updates temperature readings

  One-Shot Mode

  • Measures only when triggered

  • Saves power

   

  Fast Response

  • High-speed conversion with configurable timing

  Environmental Characteristics

  • Wide operating range: 55C to +150C

  • Suitable for:

    • Industrial

    • Laboratory

    • Precision environments

     

   

  Limitations

  • Measures temperature only

  • Slight delay due to:

    • High-resolution conversion

     

  • Requires proper placement for accurate sensing

   

  Typical Pin Configuration

  • VCC

  • SDA I2C data

  • SCL I2C clock

  • ALERT Interrupt output

  Functional Role

  The module acts as a:

  • Ultra-precise temperature sensor

  • Digital thermal monitoring device

  • High-accuracy measurement component

  Summary

  The 7Semi TMP117 Breakout is a high-end precision temperature sensing module that:

  • Uses advanced bandgap sensing technology

  • Provides 16-bit high-resolution digital output

  • Offers 0.1C accuracy

  • Supports I2C communication and alert features

  • Is optimized for precision and industrial