An RMS-to-DC converter computes the true RMS value of an alternating current waveform and outputs the equivalent DC value. Strictly speaking, an RMS-to-DC converter can be implemented as: a thermal reading device; a digital format, where the value is converted to digital format and a calculation performed; or in an analog monolithic format as shown above. Regardless of waveform geometries, a 1 volt RMS square wave, sine wave, or amplitude modulated signal converts to 1 volt DC.