Digital-to-analog converter using dual-gate transistors

Details Digital-to-analog converter using dual-gate transistors Digital-to-analog converter using dual-gate transistors

2007-08-29

2009-06-09

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

With particular solid state devices

C330S277000, C327S295000

Reexamination Certificate

active

07545297

ABSTRACT:
A digital to analog converter. The digital to analog converter including a current mirror comprising N stages, each stage comprising 2n−1dual gate transistors where N is a positive integer equal to or greater than one and n is an integer between 0 and N−1 for each of the N-stages, values of n being different for each stage of the N stages; an output, every dual gate transistor of each stage of the N stages connected to the output; N inputs, every input of the N inputs connected to a different stage of the N stages, any particular input of the N inputs connected to every dual gate transistor of a stage to which the particular input is connected to; and a current reference circuit, comprising a reference current source and a reference dual gate transistor, each stage of the N stages connected to the current reference circuit.

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Solomon et al.; Two Gates Are Better Than One; IEEE Circuits & Devices Magazine; Jan. 2003; pp. 48-62.
Office Action (Mail Date: Jul. 28, 2008) for U.S. Appl. No. 12/045,055, filed Mar. 10, 2008; Confirmation No. 8552.

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