| 摘要 |
<p>An operational amplifier circuit comprised of complementary MOS transistors (72, 80) and having a bias section (14), a differential amplifier section (12), a level shift stage (16), and an output stage (18), provides for frequency compensation using two capacitors. One capacitor (88), connected between the differential amplifier section and the output stage through a CMOS transmission gate (96, 98) that functions as a resistor, acts as the dominant pole of the transfer function. A second capacitor (78) between the amplifier section output node (50) and a level shift transistor (60), functions to remove the secondary poles in the transfer function and cause the dominant pole to occur at a higher frequency. </p> |
