sensors

LM50

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This Texas Instruments datasheet covers the LM50 and LM50-Q1, single-supply centigrade temperature sensors in SOT-23 packages. The document defines their scope for measuring temperatures from -40°C to +125°C with a linear 10mV/°C scale factor. Key parameters include a supply voltage range of 4.5V to 10V, quiescent current under 130μA, and an output offset of 500mV. It highlights ±2°C accuracy at room temperature, less than 0.8°C nonlinearity, and AEC-Q100 Grade 1 qualification for automotive use.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
supply voltage range 4.5 V — 10 V
operating temperature -40 °C — 125 °C
standby current — 180 µA —
03 — Alternatives

Closest matches to LM50

DS18B20 1.8× lower supply voltage range, 1.2× lower operating temperature
LMT87 1.8× lower supply voltage range, 1.2× higher operating temperature
LMT87DCKR 1.8× lower supply voltage range, 1.2× higher operating temperature
MCP9700 1.9× lower supply voltage range, similar operating temperature
BME280 4.0× lower supply voltage range, 1.7× lower operating temperature
BMP388 4.0× lower supply voltage range, 1.7× lower operating temperature
MAX31820MCR+ 2.2× lower supply voltage range, 1.2× lower operating temperature
SHT30-DIS 2.2× lower supply voltage range, similar operating temperature
04 — FAQ

Frequently asked questions

What is the maximum operating temperature?

The operating temperature is 125 °C.

What is the standby current?

The standby current is 180 µA.

What is the supply voltage range for the LM50?

The supply voltage range is 10 V.

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