Logic circuit having delay time free from temperature affection

Details Logic circuit having delay time free from temperature affection Logic circuit having delay time free from temperature affection

1985-02-20

1987-06-09

Miller, Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307443, 307455, 307491, 307494, H03K 1714

Patent

active

046722378

ABSTRACT:
A logic circuit such as an emitter coupled logic includes a current switch section formed of transistors and resistors and comparing an input signal with a reference voltage and an output section formed of at least a transistor and a resistor and producing an output signal in response to the comparison result, the resistors in the current switch section being polycrystalline resistors, for example, having a negative temperature coefficient of resistance whose sign is opposite to that of the resistor, for example a diffused resistor, having a positive temperature coefficient in the output section.

REFERENCES:
patent: 4063210 (1977-12-01), Collver
patent: 4243948 (1981-01-01), Schade, Jr.
patent: 4249091 (1981-02-01), Yamagiwa
patent: 4348633 (1982-09-01), Davis
patent: 4424461 (1984-01-01), Taguchi et al.
patent: 4591743 (1986-05-01), Kung
Giacomo, "Noise Immunity in Current Mode Logic Gates", RCA Tech Notes, TN No. 677, Jun. 1966.

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