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Design >> Analog Design >> reference ladder
https://designers-guide.org/forum/YaBB.pl?num=1246974368

Message started by icekalt on Jul 7^th, 2009, 6:46am

Title: reference ladder
Post by icekalt on Jul 7^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

Title: Re: reference ladder
Post by raja.cedt on Jul 7^th, 2009, 7:08am

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

Thanks,
rajasekhar.

Title: Re: reference ladder
Post by icekalt on 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