First, new stability conditions for low-power CMOS nested Miller compensated amplifiers are given in this brief. Then, an improved structure, which takes the advantages of a feedforward transconductance stage and a nulling resistor, is introduced. Experimental results prove that the proposed structure improves the frequency response, transient response, and power supply rejection ratio without increasing the power consumption and circuit complexity
Published in:
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
(Volume:48
,
Issue:
4
)
Date of Publication: Apr 2001