There were real-world curveballs, of course, not least of which was running out of the 10k resistors used for input averaging. ... where a row of low-noise op-amps are presented in parallel.

Maybe you are familiar with the op-amp as an extremely versatile component, and you know how to quickly construct a huge variety of circuits with one. Maybe you even have a favorite op-amp or two f… ...

For an op amp, 34dB is a less than ideal CMRR. However, a feedback network of 1% tolerance resistors can limit the CMRR to 34dB regardless of the op amp’s capabilities. Highly matched resistors, such ...

The circuit of Figure 1 shows a simple single-supply biasing method. This noninverting, ac-coupled, amplifier circuit uses a resistor divider with two biasing resistors, R A and R B, to set the ...

4. An improved multiple-input op-amp summer can be analyzed more easily than the one in Figure 3. This is because the general design equation can be expressed more simply (Equation 4).

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% ...

Below this, the amplifier will survive if the inputs are pulled 10V below that negative terminal – due to 880Ω series resistors (see diagram). “The inputs can tolerate up to 80V of differential ...