EDN

Seemingly Simple Circuits, Part 4: Diff-Amp Common-Mode Rejection

The three circuit coefficients, T i+, T i-, and A 0 are part of the one-op-amp diff-amp model as developed in Part 1 of this article. By substituting for v + and v – in the v O equation and ...
EDN

Seemingly Simple Circuits, Part 1: The One-Op-Amp Diff-Amp

The following is Part 1 of a four-part series. The basic one-op-amp differential amplifier consists of one op-amp and four resistors. Yet few have contemplated the depth of its complexity. It is ...
New Electronics

DESIGN TIPS from ADI: Increasing the Common-Mode Rejection Ratio of Differential Amplifiers

Differential amplifier circuits, such as the one illustrated in Figure 1, are required in analogue technology for a wide variety of applications. One example is measurement technology in which, ...
Electronic Design

Increase Common-Mode Range For Fully Differential Amplifiers

Fully differential amplifiers have grown in popularity because of their low distortion, excellent noise rejection, and the simplicity of interfacing them with differential analog-to-digital converters ...