公开(公告)号：JPH02201512A

公开(公告)日：1990-08-09

申请号：JP30451989

申请日：1989-11-22

Applicant: SGS THOMSON MICROELECTRONICS

Inventor： MASHIMIRIANO BURANBIRA ,  MARUKO MORERI ,  JIYANPIETORO MATSUGIOONI ,  PAORO MENEGORI

IPC: H01L27/04 ,  G05F3/30 ,  H01L21/822

Abstract: PURPOSE: To easily reduce the temperature dependency of a reference voltage by supplying a variable compensation current to a resistor means as a function of the temperature to bring about a voltage drop having a property practically opposite to the voltage drop in the operation area of a circuit. CONSTITUTION: Three resistors R2a to R2c are provided which are arranged in series and have one side connected to the emitter of a transistor TR Q2 and one terminal of a resistor R1 and have the other side earthed, and an NPN TR QR is included. A collector current IC of the TR QR is introduced to the resistor R2c to compensate the change of a reference voltage VREF. Thus, the temperature dependency of the reference voltage is easily reduced.