Active pull down type ECL apparatus capable of stable operation

Details Active pull down type ECL apparatus capable of stable operation Active pull down type ECL apparatus capable of stable operation

1994-10-18

1996-05-07

Hudspeth, David R.

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Bipolar transistor

326 18, 326127, H03K 19013

Patent

active

055149847

ABSTRACT:
In an active pull down ECL apparatus including a current switch formed by an input transistor and a reference transistor, an emitter follower controlled by a collector voltage of the input transistor or the reference transistor, and an active pull down circuit connected to the emitter follower, a resistor is connected to an emitter of the input transistor or the reference transistor.

REFERENCES:
patent: 5089725 (1992-02-01), Mollier et al.
patent: 5124581 (1992-06-01), Umeki
patent: 5146116 (1992-09-01), Sugimoto
patent: 5177379 (1993-01-01), Matsumoto
patent: 5216296 (1993-06-01), Tsunoi et al.
patent: 5237216 (1993-08-01), Hayano et al.
patent: 5298802 (1994-03-01), Usami et al.
patent: 5321321 (1994-06-01), Kurisu
patent: 5331225 (1994-07-01), Matsui et al.
patent: 5334886 (1994-08-01), Chuang
"A 23ps/2.1mW ECL Gate", Toh et al., IEEE International Solid-State Circuits Conference, pp. 224-225, 1989.

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