Description
This voltage to frequency converter provides the output pulse train at a frequency precisely proportional to the applied input voltage. The LM331 can operate at power supplies as low as 4.0V and be changed output frequency from 1Hz to 100KHz. It is ideally suited for use in simple
low cost circuit for analog-to digital conversion, long term integration, linear frequency modulation or demodulation, frequency to voltage conversion, and many other functions.

FEATUREs
• Guaranteed linearity: 0.01% max.
• Low power dissipation: 15mW at 5V
• Wide range of full scale frequency: 1Hz to 100KHz
• Pulse output compatible with all logic forms
• Wide dynamic range: 100dB min at 10KHz full scale frequency