Split flash analog to digital converter differential driver

Details Split flash analog to digital converter differential driver Split flash analog to digital converter differential driver

1996-10-09

1998-09-29

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341118, H03M 136

Patent

active

058151060

ABSTRACT:
A high speed differential analog to digital converter (ADC) is provided. The high speed differential ADC includes a driver section, a comparator section and a decoder section. The driver section includes a pair of series connected resistor ladders with a positive phase voltage source connected at the top and bottom of one of the pair of series connected resistor ladders and a negative phase voltage source connected at the top and bottom of the other one of the pair of series connected resistor ladders; both the positive phase voltage source and the negative phase voltage source including a predetermined first DC voltage value. At least one additional positive phase voltage source is connected to the one of the pair of series connected resistor ladders and at least one additional negative phase voltage source is connected to the other one of the pair of series connected resistor ladders. The additional positive phase and negative phase voltage sources include a predetermined second DC voltage value.

REFERENCES:
patent: 4990917 (1991-02-01), Kohdaka
patent: 5164728 (1992-11-01), Matsuzawa et al.
patent: 5291198 (1994-03-01), Kingwall et al.
patent: 5384569 (1995-01-01), Komatsu
patent: 5589831 (1996-12-01), Knee
"Differential High-Speed Analog to Digital Converter", Schulte and D.P. Swart, IBM Technical Disclosure Bulletin, vol. 38, No. 1, Jan. 1995, pp. 425-427.

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