Semiconductor integrated circuit device

US6472930B1 · kind B1 · utility

Assignee

• Mitsubishi Electric Corporation · JP

Inventors

• Yasuo Morimoto · Tokyo, JP
• Hiroyuki Kono · Tokyo, JP
• Takahiro Miki · Tokyo, JP

Key dates

• Filing date: Oct 23, 1998
• Grant date: Oct 29, 2002
• Expiry date: Oct 23, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G05F3/24
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A current generator (CG) is composed of a constant-current-source transistor M1, and transistors (M2, M3). On receipt of control signals (VG2, VG3) respectively from a driver circuit (not shown), the transistors (M2, M3) complementarily operate to function as current switches. Then, damping resistance (R3) is provided between the drain electrode of the transistor (M3) and an output terminal ({overscore (IT)}). The output terminal ({overscore (IT)}) is connected to a ground (GND), while an output terminal (IT) is grounded via an external terminal (R2). Such a structure allows a semiconductor integrated circuit device to reduce its output ringing and further to suppress imperfections resulting from the adoption of the structure to reduce the ringing.