Title :
An 8.1 mW, 82 dB delta-sigma ADC with 1.9 MHz BW and −98 dB THD
Author :
Lee, Kyehyung ; Miller, Matthew R. ; Temes, Gabor C.
Author_Institution :
Oregon State Univ., Corvallis, OR
Abstract :
A switched-capacitor low-distortion 15-level delta-sigma ADC is described. It achieves third-order noise shaping with only two integrators by using quantization noise coupling. It provides 81 dB SNDR, 82 dB dynamic range, and -98 dB THD in a signal bandwidth of 1.9 MHz. It dissipates 8.1 mW with a 1.5 V power supply (analog power 4.4 mW, digital power 3.7 mW). Its figure-of-merit is among the best reported for wideband ADCs.
Keywords :
circuit noise; delta-sigma modulation; harmonic distortion; switched capacitor networks; THD; bandwidth 1.9 MHz; delta-sigma ADC; noise figure 82 dB; power 8.1 mW; quantization noise coupling; signal bandwidth; switched-capacitor low-distortion; third-order noise shaping; voltage 1.5 V; Circuits; Dynamic range; Filters; Multi-stage noise shaping; Noise shaping; Quantization; Semiconductor device noise; Transfer functions; USA Councils; Wideband;
Conference_Titel :
Custom Integrated Circuits Conference, 2008. CICC 2008. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-2018-6
Electronic_ISBN :
978-1-4244-2019-3
DOI :
10.1109/CICC.2008.4672029
