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reference ladder (Read 1945 times)

icekalt Community Member Offline Posts: 36 Aalen, Germany	reference ladder Jul 07^th, 2009, 6:46am Hello, I have problem to determine the values of Vref+ and Vref-.See attachment. Hopefully somebody give me a help. Thanks in advanced
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raja.cedt Senior Fellow Offline Posts: 1516 Germany	Re: reference ladder Reply #1 - Jul 7^th, 2009, 7:08am can you little bit clear....which node is input node? Thanks, rajasekhar.
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icekalt

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Posts: 36
Aalen, Germany

Re: reference ladder
Reply #2 - Jul 7^th, 2009, 7:36am

raja.cedt wrote on Jul 7^th, 2009, 7:08am:

can you little bit clear....which node is input node?

Thanks,
rajasekhar.

Vref+ and Vref- are the supply voltage of this resistor ladder. Vref1...Vref11 is the generated reference voltages as input for my folding amplifier. I did read an example where Vref+ is 1.3 and Vref- is 0.7 but there is no exact method shown. The problem now is, to determine Vref is quite tough. Thx

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