EDN

Simple diff-amp extension creates a square-law characteristic

Back on December 3, 2024, a Design Idea (DI) was published, “Single-supply single-ended inputs to pseudo class A/B differential output amp,” which created some discussion about using the circuit as a ...
EDN

Single-supply single-ended input to pseudo class A/B differential output amp

From the micromixer topology by Barrie Gilbert [1], this amplifier allows a single-ended input to be converted to a Class A/B current output from a single supply. Wow the engineering world with your ...
Electronic Design

So…LTspice of the K2-W Op Amp Reveals the Mad Scientists’ Fingerprints (Part 3)

LTspice simulation of the K2-W Vacuum Tube Op Amp’s design reveals the mad science that created a commercial revolution in 1950s and 1960s analog computing. The K2-W's first-stage differencing ...
Electronic Design

Ultra-Low Voltage and Ultra-Low Power Differential Amplifier Circuit

This basic differential amplifier, while appearing not very complicated, is unconventional in that it operates the EPAD MOSFET devices in the subthreshold region. Therefore it requires a different ...