Current-steering digital-to-analog converter

Details Current-steering digital-to-analog converter Current-steering digital-to-analog converter

2006-04-18

2006-04-18

Young, Brian (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S118000

Reexamination Certificate

active

07030799

ABSTRACT:
Disclosed is a current-steering digital-to-analog converter (DAC) which comprises a decoder for receiving an N-bit digital input signal and converting the same into first and second (N−1)-bit digital signals, M (=2N−1) current cells for supplying the current based on the two digital signals, a current cell driver for generating a first analog voltage and a second analog voltage corresponding to the currents based on the two (N−1)-bit digital signals by control of a first clock signal and a second clock signal, and an amplifying circuit for sampling and holding the first and second analog voltage with reference to the first and second clock signals to generate a glitch-removed signal.

REFERENCES:
patent: 5909187 (1999-06-01), Ahuja
patent: 6667703 (2003-12-01), Reuveni et al.
patent: 6703956 (2004-03-01), Mueller et al.
patent: 6853322 (2005-02-01), Dedic
patent: 6909390 (2005-06-01), Khoini-Poorfard et al.
patent: 6927714 (2005-08-01), Teterwak
John Hyde, et al. “A 300-MS/s 14-bit Digital-to-Analog Converter in Logic CMOS”, IEEE Journal of Solid-State Circuits, vol. 38, No. 5, May 2003.
Yonghua Cong, et al. “A 1.5-V 14-Bit 100-MS/s Self-Calibrated DAC”, IEEE Journal of Solid-State Circuits, vol. 38, No. 12, Dec. 2003.

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