The output power is 62.5 mW and, of course, varies with the load resistor. Notice how this circuit fits the second rule, though.

If you have read my first blog, you may have noticed that I really like op amps. My primary expertise lies in designing them, but I’m also intrigued by clever op-amp application circuits. To promote ...

Fig. 2: Unity-Gain Follower (Non-Inverting) With the invention of the transistor in 1947 (see our related Milestone article “The Transistor Portable Radio”), a parallel development program of tube and ...

Looking at the circuit diagram it follows the classic op-amp with a long-tailed pair of NPN transistors driving a PNP gain stage and finally a complimentary emitter follower as an output buffer.

As mentioned, the gain is independent of the supply voltage. For more about op-amps, see Op-Amps Are Used Widely in Broadcast Circuits Note: The deadline to sign up for the next SBE certificate exams ...

This reduces the output voltage of the op-amp, subsequently decreasing the laser intensity. The opposite behavior is seen with a drop in laser output power. This circuit was built on a breadboard ...

This feature is realized with CMOS circuits. For instance, if an op amp uses ±5-V supplies, the output can swing over the full range from – 5 V to + 5 V or 10 V.

Efficiently Design An Op-Amp Summer Circuit To design a balanced circuit, select R F (such as 100 kΩ), and calculate R I for each input by dividing R F by the magnitude of the gain.

And here it is, modelled using LTSpice. It is the same circuit as the classic simple precision rectifier (set to pass the negative half-sine), but with the non-inverting input of the op-amp connected ...

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 ...