Title :
Power efficient scalable precision rational digital to analogue converters
Author :
Sim, C. ; Toumazou, C.
Abstract :
A theoretical basis for a new class of rational system of digital to analogue conversion, where the ratio of two low resolution, uniformly-quantised DACs is used in tandem to achieve higher precision, is described. The system provides a means to scale, at run-time, the effective precision of the DAC as a function of power consumption to meet varying power budget constraints in a device.
Keywords :
digital-analogue conversion; monolithic integrated circuits; digital to analogue conversion; low resolution DACs; power budget constraints; power consumption; power efficient scalable DACs; precision rational DACs; tandem DACs; uniformly-quantised DACs; Analog-digital conversion; Educational institutions; Energy consumption; Energy management; Power supplies; Quantization; Signal resolution; Voltage;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205711
