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Проектирование биполярных микросхем широкополосных усилителей диапазона 40 МГц

The results of designing a broadband amplifier integrated circuit with adjustable gain are presented. The circuit, implemented using bipolar technology, contains the main amplifier, an R-2R attenuator, a gain control interface, and a stable current source forming bias voltages. The use of PSPICE so...

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Bibliographic Details
Date:2005
Main Authors: Popov, V. P., Timoschenko, N. A., Slobodjanjuk, G. A., Tschernetskaja, G. V.
Format: Article
Language:Ukrainian
Published: PE "Politekhperiodika", Book and Journal Publishers 2005
Subjects:
биполярная микросхема
широкополосный усилитель с регулируемым коэффициентом усиления
n-p-n- и p-n-p-транзисторы
SPICE-параметры
Online Access:https://www.tkea.com.ua/index.php/journal/article/view/TKEA2005.6.20
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Journal Title:Technology and design in electronic equipment

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Technology and design in electronic equipment
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Summary:The results of designing a broadband amplifier integrated circuit with adjustable gain are presented. The circuit, implemented using bipolar technology, contains the main amplifier, an R-2R attenuator, a gain control interface, and a stable current source forming bias voltages. The use of PSPICE software and calculated SPICE parameters made it possible to simulate the static and frequency characteristics of the circuit. The bandwidth f_B at the 3 dB level is approximately 30 MHz, and the linearity of gain control within the range from 0 to 40 dB is no worse than ±0.3 dB.

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