H03F 2203/45208
The dif amp being of the long tail pair type, one current
Official title: the dif amp being of the long tail pair type, one current source being coupled to the common emitter of the amplifying transistors
H03F2203/45208 (The dif amp being of the long tail pair type, one current) appears on 24 US grants and 21 published applications in this corpus.
Search patents in H03F- Granted patents
- 24
- Published applications
- 21
- Assignees
- 23
- Inventors
- 45
- Latest grant
- 29 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 4 |
| 2017 | 2 | 3 |
| 2018 | 5 | 6 |
| 2019 | 5 | 3 |
| 2020 | 4 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetic operational amplifier29 Dec 2020US 10,879,860 B2Centre National de la Recherche Scientifique (CNRS)
- Amplifier circuit, reception circuit, and semiconductor integrated circuit11 Aug 2020US 10,742,175 B2Socionext Inc.
- Amplifier arrangement and switched capacitor integrator14 Apr 2020US 10,622,950 B2Ams AG
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- Driver circuit17 Dec 2019US 10,511,274 B2Sumitomo Electric Industries, Ltd.
- Circuitry with Non-linearity Cancellation13 Nov 2025US 2025/0350246 A1Apple Inc.
- Differential amplifier12 Jun 2025US 2025/0192739 A1NXP B. V.
- Operational amplifier, drive circuit, interface chip, and electronic device2 Nov 2023US 2023/0353109 A1
- Matrix power amplifier13 Feb 2020US 2020/0052664 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Matrix power amplifier19 Sep 2019US 2019/0288651 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
Most cited
By later US patents
- Common mode stabilizing circuit and method49US 5,668,468 AHarris Corporation · 1997
- Differential charge pump circuit with high differential and low common mode impedance43US 5,422,529 ARambus Inc. · 1995
- Differential charge pump circuit with high differential impedance and low common mode impedance16US 5,736,892 ARambus Inc. · 1998
- Wide band constant gain amplifier8US 5,642,077 ALucent Technologies Inc. · 1997
- Input protection circuit for a CMOS comparator5US 5,471,175 ANational Semiconductor Corporation · 1995