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K. Doris, "High-speed D/A Converters: from Analysis and Synthesis. Concepts to IC Implementation", Ph.D. Thesis, Technical University. Eindhoven, Sept. 2004
video dac current steering
For the current steering DAC used for video, the current cell is shown as below. For RGB video output waveform, the maximum output is 1V, so the two switch transistors and the two cascoded transistors will all in the linear region, isn't right?
In some papers and datasheets, there are a big capacitor at the output which in parallel with the load resistor.
For example: in the ADV7125, Cl=10pF **broken link removed**
In " A 12-Bit Intrinsic Accuracy High-Speed CMOS DAC," IEEE JSSC Dec 1998, Cl=10pF
Why they use so big capacitor and how...
adv7125 rset
Two questions:
In current-steering DAC, the current is convertered to voltage via the Rset. How to choose the value of it?
In the page2 of the ADV7125 datasheet (**broken link removed**), they choose 560ohm, the full scale current is I=Vref/Rset*K*(FFH)*4 and K=7.9896. What's the...
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