10-GHz Operation of Multiple-Valued Quantizers Using Resonant-Tunneling Devices

• ITOH Toshihiro

  NTT System Electronics Laboratories

• WAHO Takao

  NTT System Electronics Laboratories

• MAEZAWA Koichi

  NTT System Electronics Laboratories

• YAMAMOTO Masafumi

  NTT System Electronics Laboratories

Abstract

We study ultrafast operation of multiple-valued quantizers composed of resonant-tunneling diodes (RTDs) and high electron mobility transistors (HEMTs). The operation principle of these quantizers is based on the monostable-multistable transition logic (MML) of series-connected RTDs. The quantizers are fabricated by monolithically integrating InP-based RTDs and 0.7-μm-gate-length HEMTS with a cutoff frequency of 40 GHz. To perform high-frequency experiments, an output buffer and termination resistors are attached to the quantizers, and the quantizers are designed to accommodate high-frequency input signals. Our experiments show that both ternary and quaternary quantizers can operate at clock frequencies of 10 GHz and at input frequencies of 3 GHz. This demonstrates the potential of applying RTD-based multiple-valued quantizers to high-frequency circuits.

Journal

• IEICE TRANS. INF. & SYST., D

  IEICE TRANS. INF. & SYST., D 82 (5), 949-954, 1999-05-25

  The Institute of Electronics, Information and Communication Engineers

Keywords

• resonant-tunneling diodes
• HEMT
• multiple-valued logic
• negative differential resistance

Details

• CRID: 1573387452278170112
• NII Article ID: 110003219820
• NII Book ID: AA10826272
• ISSN: 09168532
• Text Lang: en
• Data Source:
  • CiNii Articles