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LM75 Module

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LM75 Module

LM75 Module

$6.00

LM75 / LM75A Digital Temperature Sensor — I²C Interface

The LM75A is a digital temperature sensor designed for accurate temperature measurement across a wide operating range. It measures temperatures from -55 °C to +125 °C and communicates with a host controller through a high-speed I²C interface, enabling fast and straightforward system integration.

Supporting both I²C and SMBus interfaces, the LM75A provides flexible connectivity options. Three selectable logic address pins allow multiple devices to share the same bus without address conflicts, making it well suited for multi-sensor designs. Its combination of precision, configurability, and low power operation makes it suitable for temperature monitoring, thermal management, and temperature control applications.


Key Features

  • Expandable I²C slave address (1001xxx)
    Supports up to eight devices on the same bus

  • Wide operating ranges

    • Supply voltage: 2.8 V to 5.5 V

    • Temperature range: -55 °C to +125 °C

  • 11-bit ADC

    • Temperature resolution: 0.125 °C

    • Accuracy: ±2 °C

  • Programmable temperature limits
    Adjustable temperature threshold and hysteresis set points

  • Low power sleep mode
    Current consumption as low as 1.0 µA

  • Standalone operation
    Can be used as a stand-alone temperature controller


Specifications Overview

Parameter Value
Temperature Range -55 °C to +125 °C
Supply Voltage 2.8 V – 5.5 V
Interface I²C, SMBus
ADC Resolution 11-bit
Temperature Resolution 0.125 °C
Accuracy ±2 °C
I²C Addressing 1001xxx (up to 8 devices)
Sleep Mode Current 1.0 µA

The LM75A combines reliable digital temperature sensing with flexible addressing and low power consumption, making it an effective solution for a wide range of temperature-related system designs.

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