Differential amplifiers are one way of implementing differential signaling, which has been a common design approach in audio, data-transmission, and telephone systems for years because of its inherent ...

This application shows how to increase the common-mode range of a fully differential amplifier by using a few external resistors (Fig. 1).

Figure 2. Differential amplifier circuit with LT5400 Thus, the LT5400 offers 0.005% matching, which results in a CMRRR of 86dB. However, the total common-mode rejection ratio of amplifier circuits ...

The amplifier circuit is wired across the RSENSE using a 4-resistor configuration that level shifts the current-shunt signal into the op amp’s common-mode range and while amplifying the current-shunt ...

Using independent common-mode feedback circuits for the input and output stages allows for more fine-tuning and a higher quality output signal, explains Mantooth.

Using independent common-mode feedback circuits for input and output stages allows for more fine-tuning and a higher quality output signal.

CFOA (Current-Feedback Operational Amplifier): An amplifier that utilises current feedback to offer high slew rates and operational bandwidth, beneficial in high frequency circuit applications.