Title :
A 16-bit 4´th order noise-shaping D/A converter
Author :
Carley, L. Richard ; Kenney, John
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pitstsburgh, PA, USA
Abstract :
A 16-bit oversampling D/A (digital-to-analog) converter has been designed using a fourth-order all-digital noise-shaping loop followed by a 3-bit D/A converter. The 3-bit D/A converter, which uses a novel form of dynamic element matching achieves high accuracy and long-term stability without requiring precision matching of components. The harmonic distortion of the untrimmed monolithic CMOS prototype D/A converter is less than -90 dB. This converter achieves performance comparable to that of a 1-bit noise-shaping D/A that operates at nearly four times its clock rate
Keywords :
CMOS integrated circuits; digital-analogue conversion; 16 bit oversampling DAC; 3-bit D/A converter; digital analogue converter; dynamic element matching; fourth-order all-digital noise-shaping loop; harmonic distortion; high accuracy; long-term stability; noise-shaping D/A converter; performance; untrimmed monolithic CMOS prototype; Clocks; Data systems; Delta modulation; Delta-sigma modulation; Finite impulse response filter; Frequency conversion; Low-frequency noise; Noise shaping; Prototypes; Topology;
Conference_Titel :
Custom Integrated Circuits Conference, 1988., Proceedings of the IEEE 1988
Conference_Location :
Rochester, NY
DOI :
10.1109/CICC.1988.20911
