Recently, a generalized ladder digital-to-analog converter (DAC) for any radix has been proposed with analog voltage output. In this paper, a new generalized inverted ladder DAC with analog current output is proposed. Analog voltage output is also obtained using a current-to-voltage converter. Spread relations for this DAC are derived. Interestingly, the DACs with radices 2 and 3 have the same spread of 2. As the radix increases, the switching arrangement becomes more and more complex. Practical results obtained for radices 3 and 4 almost tally with the theoretically expected results.
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Rathore, T.S. Generalized Inverted Ladder Digital-to-Analog Converter. Circuits Syst Signal Process 38, 1374–1384 (2019). https://doi.org/10.1007/s00034-018-0917-2
- Digital-to-analog converter
- Design of DAC
- DAC of any radix
- Ladder DAC
- Inverted ladder DAC