公开(公告)号：EP1237279A1

公开(公告)日：2002-09-04

申请号：EP01830113.5

申请日：2001-02-21

Applicant: STMicroelectronics S.r.l.

Inventor： Bedarida, Lorenzo ,  Confalonieri, Emanuele ,  Corradi, Andrea ,  Fiorina, Sara

IPC: H03K19/003 ,  H03K19/094

CPC classification number: H03K19/00384

Abstract: Output buffer in which the switching speed of the transistors (4,5) of the output stage (1) is kept constant, independently of the variations of the supply voltage (Vcc) and of the temperature, within the acceptable operating range for the device, by controlling, as a function of the supply voltage and the operating temperature detected by a correction circuit (14), the conductivity of additional transistors (13,15) in series with the transistors (7,8) of the predriving stage (2) which drive the transistors of the output stage in conduction, the transistors being driven by an analog signal (CNTRN, CNTRP) which is generated by the correction circuit (14) and is variable with the supply voltage and the operating temperature.

Abstract translation: 输出缓冲器，其中所述输出级（1）的晶体管（4,5）的开关速度保持恒定，电源电压（Vcc）的变化的unabhängig和温度的，在可接受的工作范围为在该装置内 通过控制，作为电源电压的函数，并且通过校正电路（14）检测到的工作温度，附加晶体管（13,15）串联在预驱动级的晶体管（7,8）的电导率（2 ）你推动传导所述输出级的晶体管，该晶体管由在由所述校正电路（14）产生的，并与电源电压和工作温度变量的模拟信号（CNTRN，CNTRP）所有驱动。