| 摘要 |
<p>PURPOSE:To prevent the reduction of the circuit operation speed even at the time of reducing the current consumption by adding first and second capacitors to reduce an influence of the stray capacity. CONSTITUTION:The base of a transistor TR Q5 of a differential amplifying circuit 2 and a power source are coupled by a first capacitor C1, and the base of a TR Q6 of the differential amplifying circuit 2 and the earth are coupled by a second capacitor C2. When a supply voltage Vcc is turned off, the circuit is hardly affected by a stray capacity Cso because the first capacitor C1 absorbs the electric charge charged in the stray capacity Cso generated in the circuit, and an output voltage Vout is quickly reset because the voltage drop on the reference voltage side is delayed by the second capacitor C2. Thus, the circuit operation speed is not reduced even at the time of a low current consumption.</p> |
