Adelaide Research & Scholarship
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https://hdl.handle.net/2440/40380
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| Type: | Conference paper |
| Title: | A low-voltage operational amplifier with high slew-rate for sigma-delta modulators |
| Author: | Choi, J. Lim, J. Lim, C. |
| Citation: | IEEE International Symposium on Circuits and Systems, 2006: Proceedings: 21-24 May:pp.903-906 |
| Publisher: | IEEE |
| Publisher Place: | Online |
| Issue Date: | 2006 |
| Series/Report no.: | IEEE International Symposium on Circuits and Systems |
| ISBN: | 0780393899 9780780393905 |
| ISSN: | 0271-4310 |
| Conference Name: | IEEE International Symposium on Circuits and Systems (2006 : Kos, Greece) |
| Statement of Responsibility: | Joongho Choi; Jinup Lim; Cheng Chew Lim |
| Abstract: | This paper presents the design of a low-voltage operational amplifier suitable for sigma-delta (/spl Sigma//spl Delta/) modulator applications. The circuit technique is proposed to enhance the slew-rate performance and correspondingly can help to save the power of the amplifier. The simple circuitry of a current mirror is included with a degenerate resistor that can be selectively shunted. High-speed 2nd-order /spl Sigma//spl Delta/ modulators incorporating this technique is designed in a 0.18-/spl mu/m CMOS technology and power consumption can be saved more than 20% for a power supply voltage of 1.2V. |
| Rights: | © 2006 IEEE |
| DOI: | 10.1109/ISCAS.2006.1692732 |
| Published version: | http://dx.doi.org/10.1109/iscas.2006.1692732 |
| Appears in Collections: | Aurora harvest 6 Electrical and Electronic Engineering publications |
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