Title:
【発明の名称】集積回路
Document Type and Number:
Japanese Patent JP2909382
Kind Code:
B2
Abstract:
The present invention relates to a modified emitter coupled logic circuit which includes a differential logic stage and an emitter-follower output stage. An active pull-down circuit and a constant voltage source are included in the output stage of this circuit to allow the output of the circuit to switch from a high level to a low level at approximately the same speed as the output can switch from a low level to a high level. A particular embodiment of the present invention provides a constant voltage source comprising an operational amplifier, a reference potential generating circuit and a constant voltage signal adjusting circuit.
Inventors:
KURODA TADAHIRO
DEIBITSUDO EE GUREI
DEIBITSUDO EE GUREI
Application Number:
JP9693894A
Publication Date:
June 23, 1999
Filing Date:
April 11, 1994
Export Citation:
Assignee:
TOSHIBA KK
SHINAJII SEMIKONDAKUTAA CORP
SHINAJII SEMIKONDAKUTAA CORP
International Classes:
H03K19/086; H03K19/003; H03K19/013; (IPC1-7): H03K19/086
Attorney, Agent or Firm:
Kazuo Sato (3 others)