High frequency FPAA Design using OTA in 45nm CMOS Technology

This paper aims at developing a modified yet general purpose FPAA CAB (configurable analog block) architecture which is dedicated to analog signal processing applications, based on OTA (operational transconductance amplifier). The OTA is a low voltage, low power and wide bandwidthcurrent mode device which can allow high frequency operation with an ease of stability. OTA has already established as a convenient analog device which usually simplifies circuit designs. The CAB design is aimed at aimed at achieving a wider range of functions by local programming facilities available. A CAB may contain one or more active devices and a set of switches. Here we concentrate on the design of a two OTA-CAB. The OTA is realized in 45nm bulk CMOS adopting a simple architecture, and biased by ±1V sources. HSPICE is used for simulation work. Theresults are quite satisfactory and are presented.