Title :
Programmable multi-gain current amplifier
Author :
Alzaher, Hussain ; Alees, O. ; Tasadduq, Noman
Author_Institution :
Electr. Eng. Dept., King Fahd Univ. of Pet. & Miner. (KFUPM), Dhahran, Saudi Arabia
Abstract :
A novel multi-output current amplifier exhibiting independent electronically controllable gains is proposed. The new device provides a cost-efficient and low-power solution to filter designs. While multi-output devices are often employed to reduce active components within the filters, the proposed device conserves the independent tuning characteristics. Current-mode two-integrator-loop filter topologies are considered as the demonstrating examples. The experimental results obtained from a 0.18 m complementary metal oxide semiconductor (CMOS) process are provided.
Keywords :
CMOS analogue integrated circuits; active filters; amplifiers; current-mode circuits; gain control; integrating circuits; low-power electronics; programmable circuits; CMOS process; current mode two integrator loop filter; electronically controllable gain; filter design; low power solution; multioutput current amplifier; programmable multigain current amplifier; size 0.18 mum;
Journal_Title :
Circuits, Devices & Systems, IET
DOI :
10.1049/iet-cds.2012.0086
