Referenced Items are not available for this document.
In this paper, a compensation technique for realizing a precise decibel-linear CMOS programmable gain amplifier (PGA) is described. The proposed PGA, employing an auxiliary pair, not only retains a constant current density but also offers a gain-independent bandwidth (BW). For verification, a compact PGA (0.1 mm2) is fabricated using a 0.13-μm CMOS process and measured. The measured gain control range is from -16 to + 32 dB with 6-dB steps, while the error deviation of the gain is less than 0.35 dB. A constant 3-dB BW of 60 MHz and an input P1dB of -35 to -5 dBm are obtained, while dissipating a lower power of 1.2 mW under a 1-V supply.
Published in:
Microwave Theory and Techniques, IEEE Transactions on
(Volume:60
,
Issue:
9
)
Date of Publication: Sept. 2012
- Page(s):
- 2843 - 2850
- ISSN :
- 0018-9480
- INSPEC Accession Number:
- 13038179
- Digital Object Identifier :
- 10.1109/TMTT.2012.2203928
- Product Type:
- Journals & Magazines
- Date of Publication :
- 19 July 2012
- Date of Current Version :
- 28 August 2012
- Issue Date :
- Sept. 2012
- Sponsored by :
- IEEE Microwave Theory and Techniques Society
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