The authors present a 4th-order continuous-time S¿ modulator with 1.5 b quantizer and feedback DAC for a UMTS receiver. The modulator has 70 dB DNR in a 2 MHz band and -74 dB THD at full scale. An IC which includes two modulators, a PLL, and an oscillator dissipates 11.5 mW at 1.8 V. Active area is 0.41 mm2 in a 0.18 µm, 1-poly 5-metal-layer CMOS technology.
|Title of host publication||IEEE International Solid-State Circuits Conference ; 49 (San Francisco, Calif.) : 2002.02.03-07|
|Place of Publication||Piscataway|
|Publisher||Institute of Electrical and Electronics Engineers|
|Publication status||Published - 2002|
|Name||Digest of technical papers|