Design of a high linearity four-quadrant analog multiplier in wideband frequency range

Abstract EN

In this paper, a voltage mode four quadrant analog multiplier in the wideband frequency rangeis designed using a wideband operational amplifier (OPAMP) and squaring circuits.

The wideband OPAMP is designed using 10 identical NMOS transistorsand operated with supply voltages of ±12V.

Two NMOS transistors and two wideband OPAMP are utilized in the design of the proposed squaring circuit.

All the NMOS transistors are based on 0.35µm NMOStechnology.

The multiplier has input and output voltage ranges of ±10 V, high range of linearity from -10 V to +10 V, and cutoff frequency of about 5 GHz.

The proposed multiplier is designed on PSpice in Orcad 16.6