Title:
LIMITING AMPLIFIER AND TIA CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2020/082262
Kind Code:
A1
Abstract:
A limiting amplifier (10), provided with a first input end (11), a second input end (12), a first output end (13), and a second output end (14). The limiting amplifier (10) comprises a first inductor L1, a second inductor (L2), a first load (R1), a second load (R2), a first triode (T1), and a second triode (T2). Collectors of the first triode (T1) and the second triode (T2) are grounded by means of a current source (15), and the first inductor L1 and the second inductor L2 are a pair of differential coupling inductors which are respectively connected in series to the loads (R1, R2). Thus, the limiting amplifier (10) in such a structure has the function of converting a single-ended input signal into a double-ended differential output signal; moreover, the addition of the differential coupling inductors can reduce a phase difference between two output signals, so that the swing of a total output signal is closer to the output of a real differential amplifier.
Inventors:
LAO ZHIHAO (CN)
WANG XIN (CN)
XIANG TAO (CN)
SHANG SONGQUAN (CN)
YUAN YAHSING (CN)
LIU DEANG (CN)
WANG XIN (CN)
XIANG TAO (CN)
SHANG SONGQUAN (CN)
YUAN YAHSING (CN)
LIU DEANG (CN)
Application Number:
PCT/CN2018/111641
Publication Date:
April 30, 2020
Filing Date:
October 24, 2018
Export Citation:
Assignee:
ALUKSEN OPTOELECTRONICS CO LTD (CN)
International Classes:
H03F3/45
Foreign References:
| US20050275458A1 | 2005-12-15 | |||
| US20050275458A1 | 2005-12-15 | |||
| CN202663360U | 2013-01-09 | |||
| CN101447767A | 2009-06-03 | |||
| CN103151991A | 2013-06-12 | |||
| US20030080815A1 | 2003-05-01 | |||
| JPH10290130A | 1998-10-27 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
Download PDF: