EDN

Common-mode voltage for industrial transceivers

Editor’s note: This month’s guest author is John P. Griffith, a systems engineer for the Interface group at TI, where he has supported CAN and RS485 transceivers in both applications and systems ...
EDN

High Common-Mode Voltage Amplifier

The INA149 is a precision unity-gain difference amplifier with a very high input common-mode voltage range. It is a single, monolithic device that consists of a precision op amp and an integrated thin ...
Electronic Design

Use Dynamic Common-Mode Rejection Test To Evaluate Industrial Isolator Performance

Static common-mode specifications have been the traditional standard used to measure isolators and compare devices with different construction or technologies. However, that standard is no longer an ...
Electrical Construction & Maintenance

What to Know About Common Mode Surges and Ground Contamination

According to IEEE/ANSI Standard C62.41-1991 (formerly IEEE Standard 587), Recommended Practice on Surge Voltages in Low-Voltage AC Power Circuits, the worst normal mode surge expected inside a ...
Electronic Design

About Common-Mode Rejection

Common-mode rejection is the ability of the differential amplifier (which sits between the oscilloscope and probes as a signal-conditioning preamp) to eliminate the common-mode voltage from the output ...