LM34

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SNIS161D – MARCH 2000 – REVISED JANUARY 2016

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The features of the LM34 device make it suitable for many general temperature sensing applications. Multiple

package options expand on flexibility of the device.

8.2 Typical Application

8.2.1 Basic Fahrenheit Temperature Sensor Application

Figure 14. Basic Fahrenheit Temperature Sensor (5°F to 300°F)

8.2.1.1 Design Requirements

Table 1. Key Requirements

PARAMETER

VALUE

Accuracy at 77°F

±2°F

Accuracy from –50°F to 300°F

±3°F

Temperature Slope

10 mV/°F

8.2.1.2 Detailed Design Procedure

Because the LM34 is a simple temperature sensor that provides an analog output, design requirements related

to layout are more important than electrical requirements (see Layout).

8.2.1.3 Application Curve

Figure 15. Temperature Error

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