EDN

Using isolated ADCs and an XNOR logic gate as a multiplier to measure active power

Multiplying two analog signals involves the use of analog multipliers, usually implemented by using log and antilog circuit blocks or the Gilbert cell. Today, the most common technique used to ...
EDN

A digital technique eliminates the need for an analog multiplier

Traditionally, multiplying two analog signals involves the use of analog multipliers. Design engineers digitize analog signals using an analog-to-digital converter (ADC) and then run the code on a ...