| 摘要 |
A bipolar converter for analog and digital conversion is based on a single-ended MOS chip having a grounded substrate. The MOS chip includes a 2NR ladder and an on-chip output polarity switch which establishes the polarity and range of a separate bipolar output amplifier while it minimizes the number of power supplies. The resolution of the MOS chip is effectively doubled without substantially increasing element count. A matrix decoder is employed in a tree decoder to minimize the physical size and element count of the tree decoder.
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