SKU: SENS-3889
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NXP Semiconductors LM75BD,118 SOIC-8 Digital Temperature Sensor IC

₹48.00 (Inclusive of all taxes)
Out of Stock

The NXP Semiconductors LM75BD,118 is a digital temperature sensor IC in an SOIC-8 package, providing accurate temperature measurement via a two-wire I2C interface. It is designed for easy integration into systems with 3.3V or 5V logic, including microcontrollers, industrial PLCs, and embedded computing platforms like Arduino and Raspberry Pi.

Features

  • Digital I2C Interface for direct microcontroller connection
  • Wide operating voltage range from 2.8V to 5.5V
  • Extended temperature measurement range from -55°C to +125°C
  • Low power consumption for battery-sensitive applications
  • SOIC-8 surface-mount package for compact PCB designs

Out of stock

Description

The LM75BD is a precision digital temperature sensor that converts thermal measurements into a digital signal via an integrated sigma-delta ADC. It communicates over a standard I2C bus, allowing for easy daisy-chaining and system integration with minimal wiring.

This sensor IC is designed for high reliability in industrial and consumer electronics environments, featuring programmable hysteresis and overtemperature shutdown functionality. Its small SOIC-8 footprint makes it suitable for space-constrained applications requiring accurate thermal monitoring.

Key Features

  • High-accuracy digital temperature sensing with I2C output
  • Wide supply voltage compatibility from 2.8V to 5.5V DC
  • Operational across an industrial temperature range of -55°C to +125°C
  • Programmable temperature threshold and hysteresis settings
  • Low quiescent current for energy-efficient designs
  • Factory-calibrated for immediate use without complex setup
  • Compact SOIC-8 surface-mount package (MS-012AA)
  • RoHS compliant for environmental safety standards

Applications

  • System thermal management and overheating protection in embedded computing
  • Environmental temperature monitoring in HVAC and building automation
  • Temperature compensation and logging in precision instrumentation
  • Battery pack and power supply thermal monitoring
  • Consumer electronics and appliance temperature control

Technical Specifications

Manufacturer Part NumberLM75BD,118
Manufacturer / BrandNXP Semiconductors Semiconductors
Sensor TypeDigital Temperature Sensor IC
InterfaceI2C (Two-Wire)
Supply Voltage2.8 V to 5.5 V DC
Operating Temperature Range-55°C to +125°C
Package / CaseSOIC-8
Accuracy±2°C (typical, refer to datasheet)
Resolution0.125°C (typical, 9 to 12-bit selectable)
Shutdown Current< 1 µA (typical)
ComplianceRoHS

Frequently Asked Questions

What is the communication protocol for the LM75BD sensor?

The LM75BD uses a standard two-wire I2C serial communication interface. It has a fixed 7-bit slave address, allowing multiple sensors to be connected on the same bus with address selection via pins A0-A2. The protocol supports standard (100 kHz) and fast (400 kHz) modes.

What is the operating voltage range for the LM75BD?

The LM75BD operates from a supply voltage range of 2.8 volts to 5.5 volts DC. This wide range makes it compatible with both 3.3V and 5V logic systems commonly found in microcontrollers, single-board computers, and industrial PLCs without requiring a level shifter.

How accurate is the LM75BD temperature sensor?

The LM75BD provides a typical accuracy of ±2°C over its full operating range of -55°C to +125°C. For precise applications, refer to the detailed datasheet for accuracy curves. The sensor offers programmable resolution from 9 to 12 bits (0.5°C to 0.0625°C).

Can the LM75BD be used for overtemperature protection?

Yes, the LM75BD includes a dedicated overtemperature shutdown (OS) output pin and programmable temperature thresholds. When the measured temperature exceeds a user-defined limit, the OS pin activates, which can be configured as a comparator or interrupt output to trigger system shutdown or alarms.

Package Includes

  • 1 x LM75BD,118 Temperature Sensor IC (SOIC-8)

Additional Information

Weight 0.01 kg
Dimensions 10 × 8 × 4 cm