Before going into op amp compensation it is important to shed some light on two most basic configurations in the op amp; the non-inverting (Fig. 1.A) and the inverting (Fig 1.B). There is plenty of ...

Many applications require a sampling circuit whose output is inverted with regard to the respective sample of an input signal. A simple approach is a cascade of a common noninverting sample-and-hold ...

2. In an inverting and single non-inverting input op-amp summer, R1-R3 interact to some extent (Equation 2). Equation 2 is still manageable: R1-R3 are interactive, but not terrible to deal with. 3.

In contrast, CFB op amps must avoid a direct capacitance between the output and the inverting input. There are workarounds, but they add to the circuit’s complexity.

Some op amps are specifically made to work with a single-ended supply so their negative supply can connect to ground. Of course, that presupposes that you don’t need a negative voltage output.

Figure 6 shows the distortion vs. amplitude for the input stage. This will appear (times the noise gain) at the output of the application circuit. You may get more output distortion than this, but not ...

There are a number of reasons why an engineer would want to “split” a voltage rail in their design. Sometimes parts of the circuit, like a sensor or an IC, require a bipolar supply. Other reasons are ...

There are a number of reasons why an engineer would want to “split” a voltage rail in their design. Sometimes parts of the circuit, like a sensor or an IC, require a bipolar supply. Other reasons are ...

Inverting buck-boost converters For larger output currents, inductive solutions – such as the inverting buck-boost converter – are used. These generate a negative output voltage which can be greater ...