Simple Voltage-to-Time Converter With High Linearity

A simple voltage-to-time converter having a high linearity of time/voltage relationship is described. This circuit consists of one monostable multivibrator with a constant current source. The circuit does not have a ramp generator and a voltage comparator. The linearity error of the time/voltage relationship is less than ??0.05 percent for a voltage variation from 0.5 to 14 V.