Integrated circuit operating as a current-mirror type CMOS amplifier

摘要

An integrated circuit operates as a current-mirror type CMOS amplifier. The integrated circuit is constructed of a first inverter and a second inverter. The first inverter is formed of a first P-channel FET whose source is connected to a power supply with a gate and a drain thereof being connected to a first node; and a first N-channel FET whose drain is connected to the first node with a gate thereof being connected to a first input terminal and with a source thereof being earthed. The second inverter is formed of a second P-channel FET whose source is connected to a power supply with a gate thereof being connected to the first node and with a drain thereof being connected to a second node; and a second N-channel FET whose drain is connected to the second node with a gate thereof being connected to a second input terminal and with a source thereof being earthed. The first inverter and the second inverter having different conductances which vary according to a predetermined ratio in order to reduce current consumption.