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Reference of AD5542A in bipolar mode

Dear AD engineers,

Could I ask if +5V/-5V is supported for AD5542A in bipolar mode? It is specified in datasheet everywhere that a 2.5V reference should be used, such as in page 8: Pin REF Connect this pin to an external 2.5 V reference.

Thanks a lot.

Regards,

Richie

5542A.pdf
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  • Hi Richie,

    For the power supply (VDD) it should be from 2.7V to 5.5V. For the voltage reference (REF) it should be from 2V to VDD(meaning any value from 2V up until to your working VDD).For the output voltage (VOUT) it will work from -VREF to VREF -1LSB.

    If you want to work on +/-5V output, you may want to have your VDD to 5V, and VREF to 5V, so that you could have a working output voltage of -5V to 4.99V (5 - 1LSB)

    Regards,

    Mark

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  • Hi Richie,

    For the power supply (VDD) it should be from 2.7V to 5.5V. For the voltage reference (REF) it should be from 2V to VDD(meaning any value from 2V up until to your working VDD).For the output voltage (VOUT) it will work from -VREF to VREF -1LSB.

    If you want to work on +/-5V output, you may want to have your VDD to 5V, and VREF to 5V, so that you could have a working output voltage of -5V to 4.99V (5 - 1LSB)

    Regards,

    Mark

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