A fully differential-input differential-output current-mode operational amplifier (COA) is described. The amplifier utilizes three second generation current-conveyors (CCII) as the basic building blocks. It can be configured to provide either a constant gain-bandwidth product in a fully balanced current-mode feedback amplifier or a constant bandwidth in a transimpedance feedback amplifier. The amplifier is found to have a gain bandwidth product of 8 MHz, an offset current of 0.8 Â¿A (signal-range Â±700Â¿A) and a (theoretically) unlimited slew-rate. The amplifier is realized in a standard CMOS 2.4Â¿m process.
|Title of host publication||Proceedings of the 18th European Solid-State Circuits Conference|
|Publication status||Published - 1992|
|Event||18th European Solid-State Circuits Conference - Copenhagen, Denmark|
Duration: 21 Sep 1992 → 23 Sep 1992
Conference number: 18
|Conference||18th European Solid-State Circuits Conference|
|Period||21/09/1992 → 23/09/1992|