A broadband linear-in-decibel variable gain amplifier with low gain error

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• 作者：Nan Lin (1)
  Fei Fang (1) (2)
  Zhi-Liang Hong (1)
  Hao Fang (3)
  
• 关键词：Variable gain amplifier (VGA) ; Programmable gain amplifier (PGA) ; Decibel ; linear gain ; CMOS integrated circuits ; Hard disks
• 刊名：Analog Integrated Circuits and Signal Processing
• 出版年：2013
• 出版时间：July 2013
• 年：2013
• 卷：76
• 期：1
• 页码：73-80
• 全文大小：748KB
• 参考文献：1. Bloodworth, B. E., Siniscalchi, P. P., De Veirman, G. A, Sr, Jezdic, A., Pierson, R., & Sundararaman, R. (1999). A 450-Mb/s analog front end for PRML read channels. / IEEE Journal of Solid-State Circuits, / 34(11), 1661-675. CrossRef
  2. Hsu, C.-C., & Wu, J.-T. (2003). A highly linear 125-MHz CMOS switched-resistor programmable-gain amplifier. / IEEE J Solid-State Circuits, / 38(10), 1663-670. CrossRef
  3. Yoo, S.-J., Ravindran, A., & Ismail, M. (2004). A low voltage CMOS transresistance-based variable gain amplifier. / IEEE International Symposium on Circuits and Systems, / 1, 809-12.
  4. Calvo, B., Celma, S., Aznar, F., & Alegre, J. P. (2007). Low-voltage CMOS programmable gain amplifier for UHF applications. / Electronics Letters, / 43(20), 1087-088. CrossRef
  5. Duong, Q.-H., Le, Q., Kim, C.-W., & Lee, S.-G. (2006). A 95-dB linear low-power variable gain amplifier. / IEEE Transanctions on Circuits and Systems I Regular Paper, / 53(8), 1648-657. CrossRef
  6. Nguyen, H.-H., Duong, Q.-H., & Lee, S.-G. (2008). 84?dB 5.2?mA digitally controlled variable gain amplifier. / Electronics Letters, / 44(5), 344-45. CrossRef
  7. Calvo, B., Celma, S., Martinez, P. A. & Sanz, M.T. (2006). A 1.8?V-100?MHz CMOS programmable gain amplifier. / IEEE International Symposium on Circuits and Systems, (pp. 1555-558).
  8. Gilbert, B. (1991). Variable gain amplifier controlled by an analog signal and having a large dynamic range. U.S. Patent 5077541.
  9. Kwon, I., & Lee, K. (2007). An accurate behavioral model for RF MOSFET linearity analysis. / IEEE Microwave and Wireless Components Letters, / 17(12), 897-99. CrossRef
  10. Nguyen, H.-H., Nguyen, H.-N., Lee, J.-S., & Lee, S.-G. (2009). A binary-weighted switching and reconfiguration-based programmable gain amplifier. / IEEE Transactions on Circuits and Systems II Express Briefs, / 56(9), 699-03. CrossRef
  11. Lakshmikumar, K., Hadaway, R., & Copeland, M. (1986). Characterization and modeling of mismatch in MOS transistors for precision analog design. / IEEE Journal of Solid-State Circuits, / SC-21, 1057-066. CrossRef
  12. Bastos, J., Steyaert, M., & Sansen, W. (1996). A High Yield 12-bit 250-MS/s CMOS D/A Converter. / IEEE Custom Integrated Circuits Conference, (pp. 431-34).
  13. Pelgrom, M. J. M., Duinmaijer, A. C. J., & Welbers, A. P. G. (1989). Matching properties of MOS transistors. / IEEE Journal of Solid-State Circuits, / 24, 1433-439. CrossRef
  14. Mostafa, M. A. I., Embabi, S. H. K., & Elmala, M. (2003). A 60-dB 246-MHz CMOS variable gain amplifier for subsampling GSM receivers. / IEEE Transactions on Very Large Scale Integration (VLSI) Systems, / 11(5), 835-38. CrossRef
  15. Lee, H-C., Lin, C-C., & Wang, C-K. (2006) A 290?MHz 50?dB programmable gain amplifier for wideband communications. / IEEE Asian Solid- / State Circuits Conference, (pp. 379-82).
  16. Nguyen, H.-H., Duong, Q.-H., Le, H.-B., Lee, J.-S., & Lee, S.-G. (2008). Low-power 42?dB-linear single-stage digitally controlled variable gain amplifier. / Electronics Letters, / 44(13), 780-82. CrossRef
  17. Nguyen, H-H., Nguyen, H-N., Lee, J. & Lee, S-G. (2010) A high-linearity low-noise reconfiguration-based programmable gain amplifier, / IEEE European Solid- / State Circuits Conference, (pp. 166-69).
  18. Harpe, P., Zhou, C., Philips, K. & Groot, H. (2011). A 1.6?mW 0.5?GHz open-loop VGA with fast startup and offset calibration for UWB radios. / IEEE European Solid- / State Circuits Conference, (pp. 103-06).
  
• 作者单位：Nan Lin (1)
  Fei Fang (1) (2)
  Zhi-Liang Hong (1)
  Hao Fang (3)
  
  1. State Key Laboratory of ASIC and Systems in Fudan University, Shanghai, People’s Republic of China
  2. Telink Semiconductor CO, LTD, Shanghai, People’s Republic of China
  3. LSI Corporation, Mendota Heights, MN, USA
  
• ISSN：1573-1979

文摘

A new circuit architecture for broadband digitally controlled variable gain amplifier (VGA) is introduced in this paper. The gain of the VGA is controlled precisely by using a resistor ladder attenuator and a closed-loop fine gain control block together. The bandwidth of the VGA is extended by applying a compensation technique in the fine gain control block. Implemented in 0.13-μm CMOS technology, the proposed VGA demonstrates a decibel-linear gain range of 24?dB (0-4?dB) with a gain step of 0.1?dB, a gain error <0.08?dB, a maximum input-referred third-order intercept point (IIP3) of 22.8?dBm, and a 3-dB bandwidth of 600?MHz.