Title :
A high resolution multibit Σ−Δ DAC using noise shaping
Author :
Singh, Swaran R. ; Gaudet, Vincent ; Moez, Kambiz
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
Sensor technology for space, planetary, and terrestrial applications has improved at a rate which has outpaced the increase in resolution of conventional data converters. As a result, the electronics subsystem has suddenly become the bottleneck in sensor-based applications. High resolution digital-to-analogue converters in excess of 130 dB SNR are required to utilize the resolution provided by modern sensors. This paper presents an architecture for a digital-to-analogue converter (DAC) which can meet this specification across a bandwidth of 0.001-10 Hz.
Keywords :
circuit noise; digital-analogue conversion; sigma-delta modulation; SNR; bandwidth 0.001 Hz to 10 Hz; digital-to-analogue converters; electronics subsystem; high resolution multibit Sigma-Delta DAC; noise shaping; sensor technology; Bandwidth; Baseband; Circuit noise; Frequency; Noise figure; Noise shaping; Quantization; Signal resolution; Space technology; Superconducting device noise;
Conference_Titel :
Circuits and Systems, 2009. MWSCAS '09. 52nd IEEE International Midwest Symposium on
Conference_Location :
Cancun
Print_ISBN :
978-1-4244-4479-3
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2009.5236065
