A wideband integrate, Amplify, and Dump circuit in 0.13um CMOS for Ultra-wideband applications

Abstract

Hardware development of a wideband integrate and dump circuit for a new type of Ultra-wideband (UWB) receiver architecture, called a Transform Domain receiver, is described. For this receiver architecture to be realized, a wide bandwidth Integrate Amplify and Dump (IAD) circuit element is introduced. The IAD interfaces to one of several mixers in a Transform Domain receiver and uses four timeperiods: integration, amplification, conversion, and dump to provide signal projection onto a basis function (the filtering operation) with 80dB of resolution while allowing a low-to-medium dynamic range A/D to perform conversion of basis coefficients. The IAD block design in the IBM8RF process is described as well as configuration and evaluation procedures for the constructed IAD device.