Switched Capacitor Filter Implementation

  • Hugo Alexandre de Andrade SerraEmail author
  • Nuno Paulino
Part of the SpringerBriefs in Electrical and Computer Engineering book series (BRIEFSELECTRIC)


In this chapter the filter circuits will be simulated taking into account the non-ideal effects described in fifth chapter. Due to these effects the band-pass filter will be altered, adding a new capacitor to the circuit. This is done in order to take into account the input capacitance of the low gain amplifier and facilitate the compensation of this capacitance. The simulated circuits include second-order low-pass filters, two operating at 1.2 V using the buffers presented in the fifth chapter, one operating at 0.9 V, and a sixth-order filter obtained from cascading three biquadratic sections operating at 1.2 V. The band-pass filter circuit was also simulated for a second-order filter, and a fourth-order filter obtained from cascading two biquadratic sections, all operating at 1.2 V.


Cutoff Frequency Input Capacitance Common Mode Voltage Drain Capacitance Filter Section 
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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.Faculdade de Ciências e TecnologiaUNINOVACaparicaPortugal
  2. 2.Department of Electrical EngineeringUNINOVACaparicaPortugal

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