Title :
A CMOS pulse density modulator for high-resolution A/D converters
Author :
Fiedler, H.-L. ; Hoefflinger, B.
Abstract :
A high-performance pulse density modulator (PDM) has been fabricated using a 3.5-/spl mu/m CMOS silicon gate technology. The PDM comprises all the analog circuitry needed for an interpolative A/D converter. The PDM can be operated at sample rates of up to 12 MHz and offers a SNR of 80 dB over a baseband of 20 kHz, which corresponds to 13-bit equivalent A/D resolution.
Keywords :
Analogue-digital conversion; CMOS integrated circuits; Modulators; analogue-digital conversion; modulators; Analog-digital conversion; Baseband; Clocks; Digital filters; Noise shaping; Pulse modulation; Pulse width modulation converters; Signal to noise ratio; Switches; Switching converters;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1984.1052256
