SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE

摘要

PURPOSE:To keep the signal delay constant over a wide temperature range by applying temperature correction to an output load of a semiconductor circuit to keep the signal delay constant. CONSTITUTION:A prescribed load capacitor C1 connects to a signal line 2 at the output side of a semiconductor circuit 1 being an object to temperature correction via a MOS TR 3 and a diode level V1 is applied to a gate of the MOS TR 3. The diode level V1 is a high level terminal voltage of diodes 4 connected in series of n-stage with a prescribed current flowing therethrough having a negative temperature coefficient. Then the gate level of the MOS TR 3 is controlled against a change in ambient temperature to control the load capacitor C1 connecting to the signal line 2 thereby applying temperature correction to the output load of the semiconductor circuit 1 and keeping the signal delay constant. Thus, the signal delay over a wide temperature range is kept constant.