Title :
Micro power “relative precision” 13 bits cyclic RSD A/D converter
Author :
HEUBI, Nexandre ; Balsiger, Peter ; Pellandini, F.
Author_Institution :
Inst. of Microtechnol., Neuchatel Univ., Switzerland
Abstract :
“Relative precision” A/D and D/A converters are presented. They feature a limited signal-to-noise ratio but have a dynamic range of 13 to 14 bits. These characteristics are achieved by using a so called RSD (Redundant Signed Digit) algorithm conducting to a minimal implementation complexity. The elements of the analog parr of the A/D converter and its digital control consumes less than 50 μW at 2.4 V power supply voltage, whereas the D/A converter with its track and hold circuit consumes 75 μW at the same supply voltage
Keywords :
CMOS integrated circuits; analogue-digital conversion; audio signals; digital-analogue conversion; integrated circuit noise; 13 bit; 14 bit; 2.4 V; 50 muW; 75 muW; ADC; DAC; RSD A/D converter; RSD D/A converter; limited SNR; micro power convertors; redundant signed digit algorithm; signal-to-noise ratio; track/hold circuit; Analog-digital conversion; Capacitors; Digital signal processing; Dynamic range; Energy consumption; Noise level; Signal processing algorithms; Signal to noise ratio; Switches; Threshold voltage;
Conference_Titel :
Low Power Electronics and Design, 1996., International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-3571-6
DOI :
10.1109/LPE.1996.547518
