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International Journal of Engineering، جلد ۳۴، شماره ۵، صفحات ۱۲۳۳-۱۲۳۸
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Gain Boosted Folded Cascode Op-Amp with Capacitor Coupled Auxiliary Amplifiers |
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| چکیده انگلیسی مقاله |
A novel gain boosted folded cascode Op-Amp using simple single stage auxiliary amplifiers is presented. The proposed auxiliary amplifiers are designed in a way that have proper input and output DC common mode voltage without using common mode feedback network. The inputs of the auxiliary amplifiers are insulated by the coupling capacitors and floating-gate MOS transistors. Thus, the DC input voltage level limit has been removed. Diode connected transistors are also used in the output of the auxiliary amplifiers, which keep the output voltage level at the desired. A simple single stage auxiliary amplifier imposes fewer poles and zeroes on the main amplifier compared to more complicated amplifiers where consumes also less power consumption. Simulation results in a 0.18μm CMOS technology show a DC gain enhancement of about 20dB while output swing, slew rate, settling time, phase margin and gain-bandwidth retain almost as the same as previous folded cascode design. |
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| کلیدواژه‌های انگلیسی مقاله |
Gain Boosting,Gain Band-width,Power Supply Dissipation,Operational Transconductance Amplifier |
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| نویسندگان مقاله |
M. Rashtian |
Aviation Electronics Department, Civil Aviation Technology College, Tehran, Iran
M. Vafapour |
Aviation Electronics Laboratory, Civil Aviation Technology College, Tehran, Iran
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| نشانی اینترنتی |
https://www.ije.ir/article_129075_bfd8ae689a8e635747a5da7177881f76.pdf |
| فایل مقاله |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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| نوع مقاله منتشر شده |
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