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MP7614 14-bit DAC

Item id: 98 | Vendedor: LeBon (0) 0.0% positivo
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R$ 80.00

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Brazil, RS Veranopolis
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The MP7614 is a high density 14-bit CMOS multiplying Digital-
to-Analog Converter. Silicon nitride passivation and untrimmed
silicon chromium resistors have been combined to provide
long term stability and reliability. Using the most significant
bit (MSB) segmentation technique, the MP7614 features 13-bit
(0.012%) differential and 12-bit (0.01%) integral linearity.
To achieve 13-bit linearity without laser trim, the MP7614 digitally
decodes the four MSBâs into 15 equal current sources,
rather than the standard binary-weighted sources. Each resistor
contributes only 1/16 full scale output thus reducing the
matching accuracy requirement of the resistor and CMOS
switches from 0.0015% to 0.006%.
The decoding technique achieves an eightfold improvement
in differential linearity stability over temperature, an eightfold improvement
in relative accuracy due to aging effects (long term
stability), a fourfold improvement in glitch amplitude, and a tenfold
reduction in sensitivity to output amplifier offset voltage.