CMOS ANALOG SWITCH,申请号JP19840098762-传众专利搜索

CMOS ANALOG SWITCH

申请公布号：JPS60244119(A)

申请号：JP19840098762

申请日期：1984.05.18

申请公布日期：1985.12.04

申请人：

HITACHI SEISAKUSHO KK

发明人：CHIBA TOMIO;KIDO MITSUYASU;KUDOU HIROYUKI

分类号：H03K17/687;(IPC1-7):H03K17/687

主分类号：H03K17/687

摘要：PURPOSE:To decrease field noises by inserting a delay circuit to one of both control signals which control P and NMOS transistors to secure a time difference. CONSTITUTION:A delay circuit A is provided to a signal C' of both signals C and C' which control P and NMOS transistors TRM1 and 2. Then the signal C is turned on and off with a time delay t1 to the signal C'. This can decrease greatly the field noises compared with the normal control. In particular, the field noise can be compensated effectively by the control of the time t1 for the TRM2 which is already turned off by the control signal of the minus voltage and produces the minus field through noise with the plus field through noise generated from the TRM1 which is turned off by the control signal of the plus voltage by delaying the signal C by the time t1 to the signal C'.