Frequency-to-voltage converter chips provide an analog voltage output as a function of the input signal frequency. A frequency-to-voltage converter chip can be accommodated to be used at unipolar, bipolar, and at differential input voltage. In a frequency to voltage converter circuit, a 1 mA current is shot in the integrator input for a fixed duration of time whenever the value of the comparator threshold circuit becomes negative. The amount of charge passing through the capacitor is directly proportional to the increase in the frequency. The voltage gets stabilized only when the value of leakage current passing through R1 and R3 circuit becomes equal to the value of current passed into the capacitor circuit. This operation of frequency to voltage results in the output voltage as low-voltage systems, whose value is equal to the input frequency. There are many types of frequency-to-voltage converter chips. Examples include AD650 frequency to voltage converter chips and LM2917 frequency to voltage converter chips. AD650 frequency to voltage converter chips is best suited for use in high frequency and low non-linear operations. The frequency to voltage circuit of an AD650 can also be used as a high-resolution analog to digital converter. A LM2917 frequency to voltage converter chip is a monolithic to voltage converter and is used in cruise control and speedometer applications. Other frequency-to-voltage converter chips are commonly available.