公开(公告)号：JPH05243970A

公开(公告)日：1993-09-21

申请号：JP18847192

申请日：1992-07-16

Applicant: ADVANCED MICRO DEVICES INC

Inventor： BARII JIEI ROBINSON

IPC: G05F3/26 ,  H03F3/343 ,  H03K19/086

Abstract: PURPOSE: To provide an improved low voltage current mirror terminal circuit whose manufacture and assembly are comparatively simple and economical and which conquers the defect of the terminal circuit of preceding technology. CONSTITUTION: A low voltage current mirror terminal circuit used with an ECL gate array provides independent constant output emitter follower reference current (Ief) from a voltage change in a different output emitter follower power source (VEF). Current passing through the collector of a lateral direction PNP transistor (Qp) regulates mirror current (Ip). The base of the lateral direction transistor (Qp) is connected so that base bias voltage VEP is to be received. Current passing through the collector of a pull down transistor (Qf) regulates constant output emitter follower reference current (Ief) proportional to mirror current (Ip). The different emitter follower power source (VEF) has voltage lower than a power source (VEE) so that power consumption is reduced much.