Name
Abstract | ||
|---|---|---|
A low-power source follower variable attenuator (SFVA) is proposed and implemented using standard 0.18 mu m CMOS. Using a PMOS source follower, a bandwidth of 200MHz is achieved with 500 mu A current from a 1.8V single supply. Accurate attenuation can be varied with a digital control signal. Dc coupling at the input is made possible with a self-biasing technique. A single stage SFVA with a 2-bit control is demonstrated for 0dB to 6dB attenuation. The number of control bit and attenuation is expandable. The active area is merely 120 mu m x 60 mu m which is very cost effective. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1109/ISCAS.2007.378318 | 2007 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11 |
Keywords | Field | DocType |
cmos integrated circuits,cost effectiveness,automatic gain control,digital controller,low power electronics,attenuators,circuits,bandwidth,impedance,digital control,dc coupling,attenuation,gain control | Direct coupling,Attenuator (electronics),Computer science,Control theory,Electronic engineering,CMOS,Bandwidth (signal processing),PMOS logic,Automatic gain control,Digital control,Low-power electronics | Conference |
ISSN | Citations | PageRank |
0271-4302 | 0 | 0.34 |
References | Authors | |
1 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| T. Hui Teo | 1 | 9 | 3.07 |
| Wooi Gan Yeoh | 2 | 67 | 11.50 |