Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion
Patent
1992-09-11
1994-12-06
Logan, Sharon D.
Coded data generation or conversion
Analog to or from digital conversion
Analog to digital conversion
341154, 341126, 341118, H03M 112, H03M 178, H03M 106
Patent
active
053715004
ABSTRACT:
A circuit apparatus comprises interface circuitry between analog and digital circuitry. A multiple reference circuit provides a variety of reference voltage signals. The multiple reference circuitry is coupled to a selection circuit that selectively couples one of the reference voltage signals to a first reference input of the interface circuitry and selectively couples another of the reference voltage signals to a second reference input of the interface circuitry, whereby the first and second reference inputs may be selectively coupled to the reference voltages and the circuit maintains a ratiometric relationship between the digital and analog circuitry.
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Electronic Circuits--Digital and Analog, Charles A. Holt, pp. 794-795, 1978.
Chintyan James R.
Hansen Mark C.
Honnigford Edward H.
Lippmann Raymond
Nelson James E.
Delco Electronics Corporation
Funke Jimmy L.
Logan Sharon D.
Simon Anthony L.
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