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This article presents information on the voltage-feedback operational amplifier. Precision and common-mode rejection (CMR) are the voltage-feedback operational amplifier's strong points, but its slew rate and frequency performance are subpar compared with those of a current-feedback operational amplifier. The voltage-feedback operational amplifier is a voltage-gain device, hence, it has high-impedance nodes, such as those at the collectors of the various transistors. In general, the voltage-feedback operational amplifier has excellent precision and CMR coupled with mediocre frequency and slew-rate performance.

Presents information on the 9OSC0315 Application Note from Mimix Broadband Inc. Use of classic feedback oscillators; Frequency at which a basic feedback oscillator will oscillate; Ways to determine the operating frequency of a feedback amplifier.

Looks at activities at National Semiconductor in 1995. The unveiling of a fast, low-power voltage feedback amplifier in the small SOT-23 package; The performance of the LM7121; Targeting of video and imaging system designs which require a clear, high-speed signal; National's new Vertically Integrated PNP process.