Name
Title | ||
|---|---|---|
Wideband Variable-Gain Amplifiers Based on a Pseudo-Current-Steering Gain-Tuning Technique |
Abstract | ||
|---|---|---|
This paper reports two variable-gain amplifiers (VGAs) featuring a new pseudo-current-steering gain-tuning technique. In the first VGA (VGA-I), a single-voltage-controlled dual-branch current mirror is exploited as a standalone gain control block. In the second VGA (VGA-II), two NMOS transistors, which are biased by a tunable voltage, are integrated into a conventional common-source amplifier to steer away partial of the total current. Fabricated in 40-nm CMOS technology, the VGA-I (VGA-II) occupies a tiny area of 0.03 mm
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>
(0.024 mm
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>
) and consumes 22 mW (20 mW). Measured over a gain range of > 64 dB, the -3-dB bandwidth of the VGA-I (VGA-II) is 9 GHz (6.6 GHz). For the time-domain tests, VGA-I (VGA-II) exhibits a jitter of 40 ps (30 ps), under a 2
<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</sup>
-1 PRBS input at 12 Gb/s. Their power efficiencies (1.83 and 1.67 pJ/bit) compare favorably with state-of-the-art wideband VGAs. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.1109/APCCAS47518.2019.8953084 | 2019 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS) |
Keywords | Field | DocType |
variable-gain amplifier (VGA),CMOS,wide-tuning gain control,pseudo-current steering,bandwidth (BW),high-speed transceiver,negative capacitance,peak-to-peak jitter | Negative impedance converter,Wideband,NMOS logic,Current mirror,Computer science,Electronic engineering,CMOS,Automatic gain control,Video Graphics Array,Optoelectronics,Amplifier | Conference |
ISBN | Citations | PageRank |
978-1-7281-2941-9 | 1 | 0.36 |
References | Authors | |
6 | 7 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Lingshan Kong | 1 | 3 | 1.46 |
| Yong Chen | 2 | 36 | 8.00 |
| Haohong Yu | 3 | 4 | 0.81 |
| Quan Pan | 4 | 1 | 0.70 |
| Chirn Chye Boon | 5 | 136 | 26.81 |
| Peng Un Mak | 6 | 301 | 65.06 |
| Rui Paulo da Silva Martins | 7 | 642 | 127.35 |