Analogue Multipliers, Analog Devices A range of analogue multipliers and dividers from Analog Devices suitable for a variety of signal processing applications. Both two and four quadrant types are available, in through-hole and SMT page options. Typical applications for these devices include differential ratio and percentage computations, algebraic and trigonometric function synthesis, accurate voltage controlled oscillators and filters, modulators and demodulators, gain control and rms-to-dc conversion.