DAC

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chmoc_1567941
Level 4
Level 4

is that i get 5 V output from DAC??

   

i set ref mux: (vdd/2)+/-(vdd/2) 

   

still i got 4.62 highest value.

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1 Solution
odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

Try other setting : single ended, Vssa - Vdda. Anyway, it is unlikely there will be 5V exactly (the output won't reach the compliance voltage). One option would be using IDAC with external resistor (instead of VDAC) and slightly rising Vdda (5.1-5.2V) if possible.

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3 Replies
odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

Try other setting : single ended, Vssa - Vdda. Anyway, it is unlikely there will be 5V exactly (the output won't reach the compliance voltage). One option would be using IDAC with external resistor (instead of VDAC) and slightly rising Vdda (5.1-5.2V) if possible.

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chmoc_1567941
Level 4
Level 4

but i IDAC available in some selected ic. i working on CYC824423A, CYC827443.

   

is that IDAC available in this ic? 

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odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted
        If you have VDAC8, then you have IDAC8 also   
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