Andy recommends favorite resources for basic op amp circuits and includes a portion of TI's AN-20. Test your knowledge with ...

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.

The unity-gain op amp (operational amplifier) buffer circuit is routinely used to transform high-impedance inputs into low-impedance outputs. ADC (analog-to-digital converter) voltage references are ...

Figure 7 Op Amp Buffer Circuit. One non-intuitive result is that as the circuit gain diminishes below unity, K (s) approaches one for both inverting and non-inverting circuit configurations.

Junction capacitance and common-mode distortion: How protecting your op amps may be spoiling your linearity.

This very sturdy-looking circuit provides an easy way to configure the op-amp for testing in inverting, non-inverting, and transimpedance mode, selecting from a range of feedback resistors, and ...