| 摘要 |
<p>In the integrated circuit, two first transistors (Q1, Q2) are arranged in series with one another between connections for a first (VDD) supply potential and a second supply potential (VSS). These transistors are of mutually complementary channel type. Furthermore, a serial network (N) is arranged between the two connections. It contains at least two second transistors (Q3, Q4) and at least one element (R1) which exhibits a voltage drop in operation. The second transistors (Q3, Q4) are of mutually complementary channel type. The serial network (N) acts as voltage divider circuit. The sources of the transistors (Q1, Q3) of one channel type are connected to the connection for the first supply potential (VDD). The sources of the transistors (Q2, Q4) of the other channel type are connected to the connection for the second supply potential (VSS). The drain connections of the two first transistors (Q1, Q2) form a first circuit node (N1), at which the reset signal (OUT) is produced in operation. The first circuit node (N1) is connected to the gate of the second transistor (Q4) of the other channel type. The gates of the first transistor (Q1) and of the second transistor (Q3) of in each case one channel type are both connected to the drain of the second transistor (Q3) of one channel type of the serial network (N), forming a second circuit node (N2) which, in turn, is connected to the gate of the first transistor (Q2) of the other channel type. The circuit can be used as "power-on-reset" circuit. A number of circuits can be cascaded and used as A/D converters. <IMAGE></p> |
