Title :
Abundance of ladder digital-to-analog converters
Author :
Rathore, Tejmal S. ; Jain, Ashish
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Mumbai, India
fDate :
10/1/2001 12:00:00 AM
Abstract :
A general digital-to-analog converter (DAC), which encompasses popularly known weighted-resistor and R-2R ladder DACs as the special cases, is introduced. The weighted-resistor subfamily has been studied in the recent past. This paper presents a detailed study of the sub-family of ladder DACs. Some DACs have very interesting features. It is found that the R-2R ladder DAC not only has the least possible spread but also has the minimum total resistance. Also, there is another DAC which has the same spread of 2 as the R-2R ladder DAC but requires the minimum number of resistors
Keywords :
digital-analogue conversion; integrated circuit design; ladder networks; R-2R ladder; ladder digital-to-analog converters; spread; stray capacitors; total resistance; weighted-resistor DACs; Arm; Design optimization; Digital-analog conversion; Fabrication; Monolithic integrated circuits; Production; Resistors; Silicon; Temperature distribution; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
