The first common op amp configuration we will look at is the non-inverting amplifier (Figure 2). I always wonder why we don’t call this the “regular amplifier” configuration or maybe just “amplifier.” ...

Q11 and Q12 bases are connected to the input pins via 1kΩ safety resistors. In a typical op-amp, the collectors of Q11 and Q12 would be connected to a current mirror – as they are in the classic LM358 ...

The most common way is to cascade a classic analog adder and a sample-and-hold amplifier. A classic analog adder is an op amp plus at least three precision resistors. The values of these resistors ...

If you’ve ever wondered why an op amp has the little plus and minus symbols on it, its because at the heart of it, the device is a differential amplifier. The problem is that — ideally,… ...

A simple linear voltage-controlled amplifier can be constructed with one op amp and two JFETs (see the figure). The amplifier can achieve an 80-dB dynamic control range with less than ±0.2% ...