Title:
差動増幅装置
Document Type and Number:
Japanese Patent JP4569022
Kind Code:
B2
Abstract:
Disclosed is a circuit layout of a differential amplification circuit that constitutes a Gilbert cell, in which two multiple finger bipolar transistors forming a differential amplifier are positioned substantially axially symmetrical to each other. The longitudinal direction of each finger is orthogonal to the axis of symmetry. A wiring connected to an emitter electrode of each one of the transistors is laid so as to extend in a direction opposite to the other one of the transistors.
Inventors:
Junji Ito
Ikuo Imanishi
Ikuo Imanishi
Application Number:
JP2001087008A
Publication Date:
October 27, 2010
Filing Date:
March 26, 2001
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01L27/06; H03F3/45; H01L21/8222; H01L27/082; H01L29/06; H01L29/08; H01L29/10; H01L29/732; H03D7/14
Domestic Patent References:
| JP9148573A | ||||
| JP62154910A | ||||
| JP2000022448A | ||||
| JP9064191A | ||||
| JP49079486A | ||||
| JP52044142A | ||||
| JP10173040A | ||||
| JP9214264A |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii