Logic circuit

Details Logic circuit Logic circuit

1979-10-04

1982-05-11

Dixon, Harold A.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307310, H03K 1912, H01L 3100

Patent

active

043295975

ABSTRACT:
In a logic circuit comprising a low-amplitude CML circuit including a transistor functioning as a constant-current source, the constant-current source transistor is biased by a bias power source which is capable of compensating for both the power supply voltage dependency and the junction temperature dependency of the CML circuit. In the logic circuit, negative feedback is applied to the constant-current source transistor through its base bias circuit to compensate for the dependency of the constant-current source transistor on the power supply voltage, and the difference between the junction temperature dependency of the junction voltage of one of two transistors in the control circuit and that of the other transistor due to the different emitter current densities is utilized to compensate for the dependency of the constant current source transistor on the junction temperature.

REFERENCES:
patent: 3329836 (1967-07-01), Pearlman et al.
patent: 3590274 (1971-06-01), Marley
patent: 3622799 (1971-11-01), Marley
"Fully Compensated Emitter Coupled Logic", by Muller et al., 1973, IEEE, Int. Solid State Circuits Conferences, pp. 168, 169.

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