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Title: | A 0.9 V wide-input-range bulk-input CMOS OTA for Gm-C filters |
Authors: | Grech, Ivan Micallef, Joseph Debono, Carl James Azzopardi, George |
Keywords: | Analog CMOS integrated circuits Broadband amplifiers Low voltage integrated circuits |
Issue Date: | 2003 |
Publisher: | Institute of Electrical and Electronics Engineers Inc. |
Citation: | Grech, I., Micallef, J., Azzopardi, G., & Debono, C. J. (2003). A 0.9 V wide-input-range bulk-input CMOS OTA for Gm-C filters. 10th IEEE International Conference on Electronics, Circuits and Systems, Sharjah. 818-821. |
Abstract: | The (3,-C technique is extensively used for continuous-time filtering applications because it results in tunable, wideband and compact designs. In this paper, an OTA capable of operating at a supply voltage of 0.9V is proposed using a novel bulk-input differential pair without the use of a tail current source. Good CMRR (63 dJ3) is still achieved by using the gate terminal to control the total current in the differentia1 pair, via the use of a dummy pair. The OTA also exhibits a wide differential input range of k 600mV and good G,- tunability. Simulation and test results are also presented with the OTA used in a second order cochlea low-pass filter. For this design, a standard double-poly double-metal CMOS process has been used, having a nominal threshold voltage of around 0.7 V. |
URI: | https://www.um.edu.mt/library/oar//handle/123456789/16346 |
Appears in Collections: | Scholarly Works - FacICTAI Scholarly Works - FacICTCCE Scholarly Works - FacICTMN |
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Conference paper - A 0.9 V wide-input-range bulk-input CMOS OTA for Gm-C filters.pdf Restricted Access | A 0.9 V wide-input-range bulk-input CMOS OTA for Gm-C filters | 237.28 kB | Adobe PDF | View/Open Request a copy |
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