Name
Title | ||
|---|---|---|
A 250 MHz 14 dB-NF 73 dB-Gain 82 dB-DR Analog Baseband Chain With Digital-Assisted DC-Offset Calibration for Ultra-Wideband |
Abstract | ||
|---|---|---|
A 250 MHz analog baseband chain for ultra-wideband was implemented in a 1.2 V 0.13 ¿ m CMOS process. The chip has an active area of 0.8 mm2. In the analog baseband, PGAs and filters are carried out by current-mode amplifiers to achieve wide bandwidth and wide dynamic range of gain, as well as low noise and high linearity. Besides, a current-mode Sallen-Key low-pass filter is adopted for effective rejection of out-of-band interferers. A 6 th-order Chebyshev low-pass filter realized in Gm-C topology is designed in the baseband chain for channel selection. Digitally-assisted DC-offset calibration improves second-order distortion of the entire chain. The design achieves a maximum gain of 73 dB and a dynamic range of 82 dB. Measured noise figure is 14 dB, an IIP3 of -6 dBV, and IIP2 of -5 dBV at the maximum gain mode. The analog baseband chain consumes 56.4 mA under supply of 1.2 V. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/JSSC.2009.2036320 | J. Solid-State Circuits |
Keywords | Field | DocType |
cmos analogue integrated circuits,noise figure 14 db,cmos process,analog baseband,gain 73 db,voltage 1.2 v,amplifiers,second-order distortion,analog baseband chain,6th-order chebyshev low-pass filter,dc offset calibration,electronics packaging,low-pass filters,current-mode amplifiers,ultra wideband communication,current 56.4 ma,pga,ultra wideband,current-mode vga,channel selection,analog filter,digital-assisted dc-offset calibration,size 0.13 mum,current-mode filter,chebyshev filters,frequency 250 mhz,gm-c topology,current-mode circuits,current-mode sallen-key low-pass filter,dynamic range,low pass filter,out of band,second order,chip,low pass filters | Wide dynamic range,Baseband,Computer science,Noise figure,Electronic engineering,DC bias,Bandwidth (signal processing),Chebyshev filter,Analogue filter,Electrical engineering,Amplifier | Journal |
Volume | Issue | ISSN |
45 | 2 | 0018-9200 |
Citations | PageRank | References |
14 | 1.30 | 7 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Horng-Yuan Shih | 1 | 19 | 3.84 |
| Chien-Nan Kuo | 2 | 41 | 8.22 |
| Wei-Hsien Chen | 3 | 24 | 2.97 |
| Tzu-Yi Yang | 4 | 77 | 12.45 |
| Kai-Chenug Juang | 5 | 14 | 1.64 |