Semiconductor integrated circuit device having circuit generating reference voltage
    6.
    发明授权
    Semiconductor integrated circuit device having circuit generating reference voltage 失效
    具有电路产生参考电压的半导体集成电路器件

    公开(公告)号:US06429729B2

    公开(公告)日:2002-08-06

    申请号:US09758273

    申请日:2001-01-12

    IPC分类号: G05F110

    CPC分类号: G05F1/465

    摘要: A semiconductor integrated circuit device includes a reference voltage generating circuit that can be tuned without a circuit replacement when a process condition is varied. The reference voltage generating circuit is constituted such that two different circuit configurations having different temperature properties are switched by a first switch. In each of the circuit configurations, a switch control circuit in which tuning can be performed by switching a second switch generates a control signal based on a test mode and supplies the signal to the first switch for tuning. Thereafter, a fuse in the switch control circuit is blown off to generate a control signal, and reference voltage Vref is output.

    摘要翻译: 一种半导体集成电路器件,包括一个参考电压产生电路,当一个工艺条件变化时,该参考电压产生电路可被调谐而没有电路更换。 参考电压产生电路被构造成使得通过第一开关切换具有不同温度特性的两个不同的电路配置。 在每个电路配置中,可以通过切换第二开关来执行调谐的开关控制电路基于测试模式产生控制信号,并将该信号提供给第一开关进行调谐。 此后,开关控制电路中的保险丝被断开以产生控制信号,并输出参考电压Vref。