piyush.kanodiya
Newbie level 6
Hello,
i m working on successive approximation ADC,. for that ,i have to design DAC ,which one is better,,resitor string,,R2R ladder, or charge scaling..?
i choose charge scaling...but in that i have one problem with,,capacitance value..
how we decide capacitance value for any charge scaling dac? and if i choose 5-bit dac,then why we use six capacitor not 5?.. and for swiching between different modes in charge scaling DAC, which logic we use?
please help me..thnks in advance.
i m working on successive approximation ADC,. for that ,i have to design DAC ,which one is better,,resitor string,,R2R ladder, or charge scaling..?
i choose charge scaling...but in that i have one problem with,,capacitance value..
how we decide capacitance value for any charge scaling dac? and if i choose 5-bit dac,then why we use six capacitor not 5?.. and for swiching between different modes in charge scaling DAC, which logic we use?
please help me..thnks in advance.
