Calibrated current source with ripple reduction

Details Calibrated current source with ripple reduction Calibrated current source with ripple reduction

1990-07-02

1991-06-04

Scott, J. R.

Coded data generation or conversion

Converter calibration or testing

341118, 341136, H03M 110

Patent

active

050217844

ABSTRACT:
A signal source arrangement includes a group of signal sources calibrated so that each signal source produces an identical unit signal. The unit signals are combined to form the output signal. Each signal source also produces a similar undesirable spurious signal caused by the calibration procedure. The combination sequence or the calibration sequence is arranged so as to minimize the undesirable effect of the resulting spurious signals in the combined output signal.

REFERENCES:
patent: 4272760 (1981-06-01), Prazak et al.
patent: 4549166 (1985-10-01), Hotta et al.
patent: 4591828 (1986-05-01), Storey
patent: 4607250 (1986-08-01), Naylor et al.
patent: 4914440 (1990-04-01), Ramet
patent: 4935740 (1990-06-01), Schouwenhaars et al.
patent: 4958155 (1990-09-01), Gulczynski
patent: 4967140 (1990-10-01), Groeneveld et al.
IEEE International Solid State Circuits Conference, 15 Feb. 1989, "Data Converters" Groeneveld et al., pp. 22, 23 and 277.

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