Title :
A bi-directional autozeroing amplifier for designing bi-directional time-continuous frequency mixer/extractor
Author :
Azadmehr, Mehdi ; Berg, Yngvar
Author_Institution :
Inst. of Microsyst. Technol., Vestfold Univ. Coll., Horten, Norway
Abstract :
In this paper we present a bi-directional AutoZe-roing Amplifier(AZA). The direction of the circuit is controlled by swapping the VDD and GND resulting in swap of input and output. The amplifier can have similar or different properties in each directions. In addition to the gain, the amplifier offers frequency band adjustment allowing it to be used in designing bidirectional time-continuous circuits such as filters and amplifiers. We also present a bi-directional frequency mixer/extractor using the bi-directional amplifier. The simulations presented in this paper are valid for the 90 nm CMOS transistor models from STM having a VDD equal to 1.2 V and threshold voltage of 0.25 V.
Keywords :
CMOS integrated circuits; amplifiers; mixers (circuits); transistor circuits; CMOS transistor models; GND; STM; VDD; bidirectional autozeroing amplifier; bidirectional time-continuous circuits; bidirectional time-continuous frequency mixer/extractor; frequency band adjustment; size 90 nm; threshold voltage; voltage 0.25 V; voltage 1.2 V; Batteries; Bidirectional control; Capacitors; Circuit synthesis; Educational institutions; Filters; Frequency; Inverters; Low voltage; Neurons;
Conference_Titel :
TENCON 2009 - 2009 IEEE Region 10 Conference
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-4546-2
Electronic_ISBN :
978-1-4244-4547-9
DOI :
10.1109/TENCON.2009.5395984
