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AD557,pdf datasheet (P-Compat

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  • 标      签: DAC

资 源 简 介

The AD557 consists of four major funcTIonal blocks fabricatedon a single monolithic chip (see Figure 1). The main D/A convertersecTIon uses eight equally weighted laser-trimmed currentsources switched into a silicon-chromium thin-film R/2R resistorladder network to give a direct but unbuffered 0 mV to 400 mVoutput range. The transistors that form the DAC switches arePNPs; this allows direct posiTIve-voltage logic interface and azero-based output range.
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