It’s also possible to design the second stage to add negligible spot noise in ... 300MHz OPA838 decompensated voltage feedback operational amplifier (op amp) [2] from Texas Instruments (TI). As ...

LTspice simulation of the K2-W Vacuum Tube Op Amp’s design reveals the mad ... Nicely done, Philbrick. 3. K2-W's “long tail" first stage on left half and a K2-W first stage with ideal current ...

But as is common in audio design, all is not quite as it appears ... is only revealed by degenerating the input stage with 100 Ω resistors. Figure 3: Voltage amplifier stage distortion test circuit.

The amplifier is set up as a unity gain buffer (Fig. 1). It has a –3-dB bandwidth of 16 MHz ... This type of noise peaking is set by the design of a particular op amp. Once a specific model ...