Semiconductor device including a constant voltage generation unit
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United States of America Patent
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Aug 29, 2017
Grant Date -
Aug 13, 2015
app pub date -
Apr 22, 2015
filing date -
Mar 31, 2011
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Abstract
A semiconductor device includes: a voltage generation unit that generates a first voltage having a first temperature characteristic; a constant voltage generation unit that generates a constant voltage; and an adjustment unit that generates a second voltage having a second temperature characteristic and a third voltage having a third temperature characteristic using the first voltage and the constant voltage. The constant voltage generation unit generates the constant voltage independently of the adjustment unit. One of the second and third temperature characteristics is an opposite characteristic to the first temperature characteristic. The device can also include a control unit that selects one of the second and third voltages in response to a predetermined setting value.
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