bei Google ScholarTitelangaben
Mai, Timo ; Schmid, Konstantin ; Röber, Jürgen ; Hagelauer, Amelie ; Weigel, Robert:
A fully-differential Operational Amplifier using a new Chopping Technique and Low-Voltage Input Devices.
In:
24th IEEE International Conference on Electronics, Circuits and Systems. -
Batumi, Georgia
,
2017
. - S. 74-77
ISBN 9781538619117
DOI: https://doi.org/10.1109/ICECS.2017.8292081
Abstract
A fully differential CMOS operational amplifier is presented. It uses a new chopping technique that works without the use of switching transistors in the high gain path, resulting in high noise performance and low offset. It is designed in a low-cost 180 nm process with a 5V supply voltage. In critical places, such as the differential pair, 1.8V-devices are used, as they provide much better matching and noise performance, and at the same time have lower parasitics. They are protected from breakdown conditions by several circuit techniques. Some of them are described below. The operational amplifier is used in a differential programmable gain amplifier for processing signals of up to 50 kHz bandwith with a SINAD > 100 dB, making it suitable as a preamplifier for 18-Bit ADCs.
Weitere Angaben
| Publikationsform: | Aufsatz in einem Buch |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | chopping; operational amplifier; gain boosting; 1/f-noise; offset; programmable gain amplifier; |
| Institutionen der Universität: | Fakultäten > Fakultät für Ingenieurwissenschaften > Ehemalige Professoren > Lehrstuhl Kommunikationselektronik - Univ.-Prof. Dr.-Ing. Amélie Marietta Hagelauer Fakultäten Fakultäten > Fakultät für Ingenieurwissenschaften Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Kommunikationselektronik Fakultäten > Fakultät für Ingenieurwissenschaften > Ehemalige Professoren |
| Titel an der UBT entstanden: | Nein |
| Themengebiete aus DDC: | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften |
| Eingestellt am: | 22 Okt 2019 07:21 |
| Letzte Änderung: | 22 Okt 2019 07:21 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/52539 |