H03F 3/3018
Using opamps as driving stages
Official title: {using opamps as driving stages}
H03F3/3018 (Using opamps as driving stages) appears on 20 US grants and 15 published applications in this corpus.
Search patents in H03F- Granted patents
- 20
- Published applications
- 15
- Assignees
- 15
- Inventors
- 32
- Latest grant
- 18 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 3 |
| 2021 | 3 | 2 |
| 2022 | 1 | 3 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Slew rate acceleration circuit and buffer circuit including the same18 Mar 2025US 12,255,654 B2Magnachip Mixed-Signal, Ltd.
- Charge to voltage converter31 Dec 2024US 12,184,301 B1Acacia Communications, Inc.
- Charge amplifier circuit with a high output dynamic range for a microelectromechanical sensor21 Nov 2023US 11,824,503 B2STMicroelectronics S,r.l.
- Multi-stage amplifier circuit8 Nov 2022US 11,496,105 B2Richtek Technology Corporation
- Charge amplifier circuit with a high output dynamic range for a microelectromechanical sensor16 Nov 2021US 11,177,779 B2STMicroelectronics S,r.l.
- Dual-output amplifier circuit8 May 2025US 2025/0150037 A1Analog Devices, Inc.
- Slew rate acceleration circuit and buffer circuit including the same22 Sep 2022US 2022/0302910 A1MagnaChip Semiconductor, Ltd.
- Multi-stage amplifier circuit14 Apr 2022US 2022/0116002 A1Richtek Technology Corporation
- Charge amplifier circuit with a high output dynamic range for a microelectromechanical sensor3 Feb 2022US 2022/0038065 A1STMicroelectronics S,r.l.
- Robust architecture for mode switching of a force and measure apparatus15 Apr 2021US 2021/0109151 A1Analog Devices International Unlimited Company
Most cited
By later US patents
- Complementary push-pull CMOS source follower analog video buffer29US 5,959,475 AXerox Corporation · 1999
- Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops26US 6,646,508 B12003
- Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops20US 5,815,040 A1998
- Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops15US 6,414,549 B12002
- Wide bandwidth, current sharing, MOSFET audio power amplifier with multiple feedback loops9US 6,268,770 B12001