Electronic Design

So…The First Stage of the K2-W Op Amp is Neither Balanced Nor Differential (Part 2)

Op amps played a critical role in knocking out German cruise missiles in WWII. Scientists at Bell Labs came up with a spiffy, high-gain, differencing amplifier. Andy’s still threatening to run SPICE ...
EDN

Separating linear from slew limited performance in high speed amplifiers (Part 2 of 2). The signal sped up, insight #15

Much like the precision op amps of Part 1 (Ref. 1), those op amps and fully differential amplifiers (FDAs) offering over 50 MHz bandwidths will have a wide range of slew rate (SR) specifications and ...
EDN

Improving Phase Margin for Highly Reactive Rail-to-Rail Output Stage Impedances in Op Amp and Fully Differential Amplifier Applications

Even the simple circuit of Figure 1 seems to be suffering from a low phase margin condition as described in Reference 1 with a sharp resonance at 165MHz. It is important, even in lower speed signal ...