Title :
A 2.7-V 11.8-mW baseband ADC with 72-dB dynamic range for GSM applications
Author :
Nagari, Angelo ; Mecchia, Alessandro ; Viani, Ermes ; Pernici, Sergio ; Confalonieri, Pierangelo ; Nicollini, Germano
Author_Institution :
SGS-Thomson Microelectron., Milan, Italy
fDate :
6/1/2000 12:00:00 AM
Abstract :
A receive baseband analog-to-digital converter (ADC) for a GSM cellular radio system is presented. Low voltage and low power techniques have been applied across many aspects of the design. The circuit consists of two second-order double-sampled semi-bilinear /spl Sigma//spl Delta/ modulators followed by two 576-tap digital finite-impulse response (FIR) GSM-channel filters with offset calibration. The complete ADC achieves a dynamic range of 72 dB and dissipates 11.8 mW from a 2.7-V supply. The area is 1.6 mm/sup 2/ in a 0.5-/spl mu/m n-well double-poly triple-metal CMOS process.
Keywords :
CMOS integrated circuits; FIR filters; calibration; cellular radio; low-power electronics; sigma-delta modulation; 0.5 micron; 11.8 mW; 2.7 V; GSM applications; baseband ADC; cellular radio; digital finite-impulse response filters; double-sampled semi-bilinear sigma-delta modulators; dynamic range; low power techniques; n-well double-poly triple-metal CMOS process; offset calibration; Analog-digital conversion; Baseband; Circuits; Digital filters; Digital modulation; Dynamic range; Finite impulse response filter; GSM; Land mobile radio cellular systems; Low voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
