Title :
A 4.4mW 76dB complex /spl Sigma//spl Delta/ ADC for Bluetooth receivers
Author_Institution :
Philips Res. Labs., Eindhoven, Netherlands
Abstract :
A /spl Sigma//spl Delta/ ADC with a fifth-order continuous-time complex loop filter achieves 76dB of DNR in a 1MHz channel. The input impedance is less than 400/spl Omega/ and allows operation with a current-mode RF front-end. Image rejection is over 50dB, and IM3 distortion is below -82dBc. The circuit dissipates 4.4mW and is implemented in 0.18/spl mu/m CMOS.
Keywords :
Bluetooth; CMOS integrated circuits; radio receivers; sigma-delta modulation; 0.18 micron; 1 MHz; 4.4 mW; Bluetooth receiver; CMOS technology; DNR; IM3 distortion; continuous-time complex loop filter; current-mode RF front-end; image rejection; input impedance; sigma-delta ADC; Band pass filters; Bandwidth; Bluetooth; Filtering; Impedance; Linearity; Noise shaping; Radio frequency; Receivers; Signal to noise ratio;
Conference_Titel :
Solid-State Circuits Conference, 2003. Digest of Technical Papers. ISSCC. 2003 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-7707-9
DOI :
10.1109/ISSCC.2003.1234209
