Signal bus line driver circuit

Details Signal bus line driver circuit Signal bus line driver circuit

1992-04-13

1993-09-21

Wambach, Margaret R.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307310, 307446, 307491, 307263, 307540, 307570, H03K 301, H03K 1902

Patent

active

052472078

ABSTRACT:
A signal line driver circuit having an input signal buffer and an open collector output circuit configuration and a method are provided for receiving an input signal and causing the output to pull down the voltage potential of a signal bus line while sinking an output current therefrom at a substantially constant output voltage with a substantially constant input-to-output signal propagation delay variation over variations in operating temperatures. A portion of the output current which is to be sunk from the signal bus line is advantageously used as the current supply for the input signal buffer circuitry. The input signal buffer circuitry uses metal oxide semiconductor field effect transistors in parallel with a bipolar junction transistor to take advantage of their mutually inverse conductivity vs. temperature characteristics, thereby ensuring that the output current sinking capability, output voltage range and input-to-output signal propagation delay variation remain substantially constant over a wide operating temperature range.

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patent: 4940910 (1990-07-01), Jiang
patent: 4948994 (1990-08-01), Akioka et al.
patent: 5105103 (1992-04-01), Neu

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