Title :
A precision dual `current feedback´ operational amplifier
Author :
Bowers, Derek F.
Author_Institution :
Precision Monolithics Inc., Santa Clara, CA, USA
Abstract :
A high-speed monolithic dual operational amplifier using the `current feedback´ approach is described which enables errors inherent in this type of amplifier to cancel in many applications. The advantages of this approach include a closed-loop bandwidth relatively independent of gain and a very high slew-rate capability. The disadvantages include considerably reduced DC performance compared to a conventional operational amplifier. Techniques for improving the DC performance of the individual amplifiers are described
Keywords :
bipolar integrated circuits; linear integrated circuits; operational amplifiers; DC performance; closed-loop bandwidth; current feedback; high-speed monolithic dual operational amplifier; slew-rate capability; Bandwidth; Differential amplifiers; Diodes; Feedback loop; Impedance; Mirrors; Operational amplifiers; Output feedback; Resistors; Voltage;
Conference_Titel :
Bipolar Circuits and Technology Meeting, 1988., Proceedings of the 1988
Conference_Location :
Minneapolis, MN
DOI :
10.1109/BIPOL.1988.51047
