The LM331 is an 8-pin dual in-line package (PDIP) integrated circuit (IC) that functions as a voltage-to-frequency converter. It is designed to accurately convert an input voltage signal into a corresponding frequency output signal.

With a maximum frequency of 100 kHz, the LM331 can handle input voltage signals within this range and generate a frequency output proportional to the input voltage. The device ensures precise conversion by maintaining a linearity of ±0.01%, which means the frequency output accurately represents the input voltage without significant distortions.

The LM331 is constructed for through-hole mounting, making it suitable for various electronic applications. Its package type is 8-DIP, with a lead spacing of 0.300 inches (7.62 mm). This makes it easy to integrate into circuit boards and other electronic systems.

In terms of performance, the LM331 offers a full-scale range of ±150 ppm/°C. This means that the output frequency is subject to minimal drift with changes in temperature, ensuring reliable and stable operation across different environments.

Overall, the LM331 is a versatile voltage-to-frequency converter IC that provides accurate and reliable frequency output proportional to the input voltage. Its compact size, through-hole mounting capability, and excellent linearity make it suitable for various electronic applications where voltage-to-frequency conversion is required with high precision.