Title :
Current-injection ECL/CML for AlGaAs/GaAs HBTs
Author_Institution :
Bell-Northern Res. Ltd., Ottowa, Ont., Canada
Abstract :
A novel ´current-injection´ circuit topology is presented that requires lower supply voltage and demonstrates smaller propagation delay and outperforms classical 2-level emitter-coupled logic/current-mode logic (ECL/CML) in AlGaAs/GaAs heterojunction bipolar transistor (HBT) technology. Test circuits were wafer-probed at 10 Gbit/s with full functionality, and operating clock frequency up to 20 GHz is recorded.
Keywords :
III-V semiconductors; aluminium compounds; bipolar integrated circuits; emitter-coupled logic; gallium arsenide; heterojunction bipolar transistors; integrated logic circuits; 10 Gbit/s; 20 GHz; AlGaAs-GaAs; CML; ECL; circuit topology; clock frequency; current injection logic; heterojunction bipolar transistor; propagation delay; supply voltage;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931254
