Coded data generation or conversion – Analog to or from digital conversion – With particular solid state devices
Patent
1997-05-14
1999-04-06
Young, Brian
Coded data generation or conversion
Analog to or from digital conversion
With particular solid state devices
341144, H03M 166
Patent
active
058924710
ABSTRACT:
A metal-oxide-semiconductor digital-to-analog converter unit includes a multiplicity of current mirror components 20 in a symmetric array, a resistance network activated by voltage sources providing weighted biasing potentials for the current mirror components, and an electrical coupling of the current mirror components to compensate for variations physical properties across converter unit substrate area. The current mirror components 20 include a current steering portion 21.sub.0 -21.sub.N-1 and 25.sub.0 -25.sub.N-1 coupled to an annular bias transistor 22. The resulting digital-to-analog converter has improved performance characteristics when compared to previously implemented digital-to-analog converter units.
REFERENCES:
patent: 5703587 (1997-12-01), Clark et al.
Bell Kenneth M.
Kiriaki Sami
Mahant-Shetti Shivaling
Brady III W. James
Donaldson Richard L.
Maginniss Christopher L.
Texas Instruments Incorporated
Young Brian
LandOfFree
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