Data converter and line driver for a digital data communication

Details Data converter and line driver for a digital data communication Data converter and line driver for a digital data communication

1983-10-26

1985-09-24

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307445, 307490, H03K 1756

Patent

active

045434964

ABSTRACT:
A data converter comprises a pair of NAND gates and a pair of bipolar differential operational amplifiers. Monopolar binary digital data in uninverted and inverted forms and a clock signal are connected with the NAND gate inputs. The NAND gate outputs are complementary monopolar data signals at the clock frequency and are cross-coupled to the direct and inverting inputs of the operational amplifiers. The outputs of the operational amplifiers are complementary bipolar data signals. Low pass filters establish the rise and fall times of the bipolar data signals and the high frequency response limit. Voltage buffers isolate the converter from the data transmission line and include current limiting resistors which prevent damage in the event of a short circuit of the line.

REFERENCES:
patent: 3594649 (1971-07-01), Rauch
patent: 3805153 (1974-04-01), Gallant
patent: 4017743 (1977-04-01), Hartman
patent: 4229701 (1980-10-01), Bourner

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