Title:
SOURCE-DEGENERATED AMPLIFICATION STAGE WITH RAIL-TO-RAIL OUTPUT SWING
Document Type and Number:
WIPO Patent Application WO/2017/213804
Kind Code:
A3
Abstract:
Certain aspects of the present disclosure generally relate to using cross-coupled transistors for source degeneration of an amplification stage. For example, the amplification stage generally includes a differential amplifier comprising transistors, cross-coupled transistors coupled to the differential amplifier, and an impedance coupled between drains of the cross-coupled transistors. In certain aspects, the differential amplifier comprises a push-pull amplifier, and the transistors of the push-pull amplifier comprise cascode-connected transistors.
More Like This:
| JP2022543839 | Programmable gain amplifier with programmable resistance |
| JPS60233850 | SEMICONDUCTOR IC DEVICE |
| JP4850134 | High frequency circuit |
Inventors:
KARMAKER RAHUL (US)
Application Number:
PCT/US2017/032661
Publication Date:
January 25, 2018
Filing Date:
May 15, 2017
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H03F3/45
Domestic Patent References:
| WO2002023716A2 | 2002-03-21 |
Foreign References:
| US20080079497A1 | 2008-04-03 | |||
| EP0566990A2 | 1993-10-27 | |||
| US20020149419A1 | 2002-10-17 | |||
| EP0161627A1 | 1985-11-21 | |||
| US5736892A | 1998-04-07 | |||
| US20160080181A1 | 2016-03-17 |
Other References:
PHANUMAS KHUMSAT ET AL: "Single-stage CMOS OTA for active-RC filter design", CIRCUIT THEORY AND DESIGN, 2007. ECCTD 2007. 18TH EUROPEAN CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 27 August 2007 (2007-08-27), pages 436 - 439, XP031257777, ISBN: 978-1-4244-1341-6
Attorney, Agent or Firm:
ROBERTS, Steven E. et al. (US)
Download PDF: