Title :
Ultrahigh-speed resonant tunneling circuits
Author :
Waho, Takao ; Itoh, Toshihiro ; Yamamoto, Masafumi
Author_Institution :
NTT Syst. Electron. Labs., Kanagawa, Japan
Abstract :
By using InP-based RTD/HEMT integration technology, we fabricated ultrahigh-speed resonant-tunneling circuits, i.e., ternary and quaternary quantizers. The quantizing operation at room temperature was confirmed at a clock frequency of 10 GHz for input frequencies as high as 4.7 GHz. SPICE simulation proved that a 4-bit flash-type analog-to-digital converter which consists of the quaternary quantizers, can operate at a sampling frequency of 10 GHz
Keywords :
HEMT integrated circuits; III-V semiconductors; SPICE; high-speed integrated circuits; indium compounds; quantisation (signal); resonant tunnelling diodes; 10 GHz; 4 bit; InP; InP RTD/HEMT integration technology; SPICE simulation; flash-type analog-to-digital converter; quaternary quantizer; ternary quantizer; ultrahigh speed resonant tunneling circuit; Analog-digital conversion; Circuit simulation; Clocks; Frequency; HEMTs; RLC circuits; Resonant tunneling devices; SPICE; Sampling methods; Temperature;
Conference_Titel :
Physics and Modeling of Devices Based on Low-Dimensional Structures, 1998. Proceedings., Second International Workshop on
Conference_Location :
Aizu-Wakamatsu
Print_ISBN :
0-8186-8682-0
DOI :
10.1109/LDS.1998.714537
