发明名称 |
VARIABLE GAIN AMPLIFIER HAVING WIDE GAIN VARIATION AND WIDE BANDWIDTH |
摘要 |
There is provided a variable gain amplifier that is implemented with a CMOS device and has wide band variation and wide bandwidth by a predetermined exponential function. A variable gain amplifier having wide gain variation and wide bandwidth according to an aspect of the invention may include: a differential amplification section differentially amplifying an input signal according to a gain adjustment signal; and a gain adjustment section supplying the gain adjustment signal on the basis of an approximated exponential function determined according to a predetermined bias current, and adjusting a gain of the differential amplification section.
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申请公布号 |
US2009072905(A1) |
申请公布日期 |
2009.03.19 |
申请号 |
US20080210670 |
申请日期 |
2008.09.15 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
DUONG QUOC HOANG;KIM EUNG JU;LEE SANG GUG;LEE JEONG SEON;CHOI BONG RAK;KIM HONG BONG |
分类号 |
H03F3/45 |
主分类号 |
H03F3/45 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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