Research Article
Design of a 2 GHz Linear-in-dB Variable-Gain Amplifier with 80-dB Gain Range
Table 1
VGA performance comparison.
| | Gain range (dB) | Bandwidth (GHz) | GBP (GHz) | Power (mW) | Technology |
Linear-in-dB |
|
Wang et al. 2012 [8] | −10~50 | 2.2 | 700 | 2.5 | CMOS 90 nm | No |
Kumar et al. 2010 [2] | −10~10 | 4 | 12 | 9 | SiGe 0.18 um | No |
Manstretta and Dauphinee 2007 [4] | −30~30 | 1 | 32 | 250 | SiGe 0.18 um | No |
Jianhong et al. 2007 [5] | −17~16 | 0.4~0.8 | 6 | 22 | CMOS 0.18 um | No |
Chang et al. 2009 [6] | −10~17 | 0.9 | 7 | 40 | SiGe 0.35 um | Yes | This work | −19~61 | 2 | 2805 | 31 | SiGe 0.18 um | Yes |
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