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A class AB CMOS operational amplifier for application as rail–to–rail high current drive output buffer
| Content Provider | Semantic Scholar |
|---|---|
| Author | Bruschi, Paolo Navarrini, D. Piotto, Massimo |
| Copyright Year | 2002 |
| Abstract | A class AB CMOS operational amplifier specially designed to be used as unity gain buffer is presented. The novelty of the presented topology consists in using a classical rail-to-rail OTA with duplicated output port to drive the gates of the op-amp complementary output transistors and relying on a separate feedback loop to limit the quiescent current. The simplicity of classical two stage op-amps is maintained with advantages in terms of die size, transient response and process independence. The circuit, fabricated using the BCD3S process of STMicroelectronics, occupies a die size of 0.06 mm2and operates from a single 2.2V power supply with resistive loads as low as 300 Ω. |
| Starting Page | 731 |
| Ending Page | 734 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.esscirc.org/esscirc2002/PDFs/CP.18.pdf |
| Journal | Proceedings of the 28th European Solid-State Circuits Conference |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
