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## Sheet 7: DACs and Vref source
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- Add comments on ranges of signals.
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- *Done.*
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- Add 100nF on +12V\_filtered of ADR445 (IC2).
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- *Done.*
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- **EP (external pad) of the OPAMP should be connected to the negative
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supply voltage instead of the Gnd. Check with datasheet.**
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- \*EP (external pad) of the OPAMP should be connected to the negative
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supply voltage instead of the Gnd. Check with datasheet.
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- *Done.*
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- **The DACs are supplied with +6V while this is the absolute maximum
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- \*The DACs are supplied with +6V while this is the absolute maximum
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voltage. Check if they should be supplied with a lower voltage and
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how it should be generated.**
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how it should be generated.
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- *Problem solved by adding silicon diode between +6V supply line
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and VDD power pin of the DAC.*
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