LM35DZ Temperature Sensor

OverviewThe LM35DZ Temperature Sensor is a precision, easy-to-use integrated circuit that provides a linear output voltage proportional to temperature in Celsius. With an output scale of 10mV per °C, stable performance, and low power consumption, the LM35DZ is ideal for embedded systems, environmental monitoring, and IoT projects.Key FeaturesLinear output: 10mV per °C (direct Celsius reading)Temperature range: 0°C to 100°CSupply voltage: 4V to 30VHigh accuracy: ±0.5°C at 25°CLow quiescent current: <60µA to reduce self-heatingCompact TO-92 package for through-hole mountingNo external calibration requiredCompatible with Arduino, Raspberry Pi, PIC, AVR and other microcontrollersTechnical SpecificationsOutput scale: 10mV/°C (for example, 25°C = 250mV)Accuracy: typically ±0.5°C at 25°COperating temperature range: 0°C to 100°CSupply voltage range: 4V to 30VQuiescent current: typically <60µAPackage type: TO-92Electrical CharacteristicsLow self-heating ensures measurement stability for ambient sensingDirect voltage output simplifies ADC measurement on microcontrollersMinimal external components required; typically only power and ground connections plus the analog inputApplicationsEnvironmental temperature monitoringHome automation and HVAC control systemsRobotics and embedded systemsIndustrial and consumer electronicsBattery management and thermal protectionIoT sensor nodes and data loggingIntegration and WiringWiring the LM35DZ is straightforward: connect VCC to a 4V to 30V supply, connect GND to system ground, and measure the output voltage at the VOUT pin with an analog-to-digital converter (ADC).Reading Temperature with a MicrocontrollerMeasure VOUT in millivolts (mV).Convert to Celsius: Temperature (°C) = VOUT (mV) / 10.Example: VOUT = 250mV corresponds to 25°C.Arduino Example (concept)Connect LM35DZ VOUT to an analog input (e.g., A0).Use ADC to read voltage, convert ADC counts to volts, then multiply volts by 100 to get °C (because 10mV/°C = 0.01V/°C).Package and MountingThe LM35DZ comes in a compact TO-92 package suitable for through-hole mounting. Its small footprint makes it easy to place on PCBs or breadboards for prototypes and production designs.Why Choose LM35DZSimple and direct Celsius output eliminates complex conversion or look-up tablesWide supply range and low power make it versatile for battery-powered and mains-powered systemsHigh accuracy and low self-heating deliver reliable ambient temperature measurementsOrdering and NotesPackage type: TO-92. Note: Images are for illustration purposes only. Category: Sensors And Modules Tags: Arduino temperature sensor, Celsius sensor, College Road Electronics, DC temperature sensor, digital temperature projects, Electronics Components, linear temperature sensor, LM35 IC, LM35DZ, Raspberry Pi temperature sensor, Temperature Sensor, TO-92 sensor College Road Electronics4.85 (317 Reviews)