SALLEN-KEY FILTERS USING OPERATIONAL TRANSCONDUCTANCE AMPLIFIER

Operational amplifier serves as an essential component in any mixed signal circuitry for the amplification of signals. Filters using operational amplifiers act as an important signal processing element in any analogue base band circuitry. In this paper, a Three-Stage Operational Transconductance Amplifier(OTA) using active single Miller capacitor along with Inner half feed-forward technique is used for the designing of a Sallen – Key Low Pass Filter as well as Sallen-Key High Pass Filter. The proposed filters are implemented to work on a power supply of 1.8 V.