Title :
Zero-power mismatch-independent Digital to Analog converter
Author :
Khorami, Ata ; Sendi, M. S. Eslampanah ; Nikoofard, A. ; Sharifkhani, M.
Author_Institution :
Sch. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
A new switched-capacitor Digital to Analog converter (DAC) is presented. In this method, a ladder of series capacitors is used to generate the output voltage levels. A correction phase is used to increase the precision of the DAC. It is analytically shown that the proposed DAC is mismatch and process independent by virtue of the correction phase. That is after some correction phases, the effect of mismatch on the reference voltage levels on the ladder diminishes and an accurate voltage division is provided. It is proven that the whole process sinks no extra charge from the power supply.
Keywords :
digital-analogue conversion; reference circuits; switched capacitor networks; correction phase; independent digital to analog converter; reference voltage levels; series capacitors; switched-capacitor digital to analog converter; zero power mismatch; Capacitors; Digital-analog conversion; Layout; Power demand; Simulation; Steady-state; Switches; ADC; DAC; High precision; Mismatch independent DAC; Ultra low power;
Conference_Titel :
New Circuits and Systems Conference (NEWCAS), 2015 IEEE 13th International
Conference_Location :
Grenoble
DOI :
10.1109/NEWCAS.2015.7182106
