A novel CMOS-based voltage-mode first-order phase shifter employing a grounded capacitor

E Yuce - Circuits, Systems and Signal Processing, 2010 - Springer
Circuits, Systems and Signal Processing, 2010Springer
In this paper, a voltage-mode (VM) topology for providing first-order all-pass filter responses
is suggested. The proposed circuit is composed of a smaller number of components when
compared to earlier ones, as it employs only three CMOS transistors, a grounded capacitor
which is advantageous in integrated circuit (IC) processes, and two resistors. Computer
simulation results, using the SPICE program, are given to exhibit the performance. A second-
order low-pass filter employing only grounded capacitors which are canonical in number is …
Abstract
In this paper, a voltage-mode (VM) topology for providing first-order all-pass filter responses is suggested. The proposed circuit is composed of a smaller number of components when compared to earlier ones, as it employs only three CMOS transistors, a grounded capacitor which is advantageous in integrated circuit (IC) processes, and two resistors. Computer simulation results, using the SPICE program, are given to exhibit the performance. A second-order low-pass filter employing only grounded capacitors which are canonical in number is given as one of the applications of the presented non-inverting first-order all-pass filter topology.
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