A Chain Active RC Filter with Compensation for Absolute Accuracy of Passive Elements

• Okine Mitsuo

  Hiroshima Institute of Technology

• Katsuhara Noriaki

  Hiroshima Institute of Technology

Bibliographic Information

Other Title

• 素子偏差の影響を補償した鎖状能動RCフィルタ
• ソシ ヘンサ ノ エイキョウ オ ホショウシタ サジョウ ノウドウ RC フィ

Abstract

Analog signal processing is very important technology for many reasons. Voltage followers are suitable active elements for a realization of high-frequency active RC circuits. A synthesis of chain active RC filters is proposed by which the lowpass function can be realized with voltage followers.<br>This paper describes compensation method of the cutoff frequency shift for the active RC filter due to the low absolute accuracy of passive elements on a monolithic chip. The proposed filter is connected to a voltage controlled variable resistance, which determines resistance with a DC voltage V_c externally connected.<br>As an example, a fifth-order Butterworth chain active RC filter is designed for frequency of 100kHz. SPICE simulation results are shown to demonstrate the effectiveness of the proposed method.

Journal

• IEEJ Transactions on Electronics, Information and Systems

  IEEJ Transactions on Electronics, Information and Systems 117 (8), 994-999, 1997

  The Institute of Electrical Engineers of Japan

Keywords

• 集積アナログ回路
• 能動フィルタ
• 連続時間系フィルタ

Details

• CRID: 1390282679584832384
• NII Article ID: 130006843894
• NII Article ID: 10002810936
• NII Book ID: AN10065950
• DOI: 10.1541/ieejeiss1987.117.8_994
• ISSN: 13488155
• ISSN: 03854221
• NDL BIB ID: 4266963
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4266963
• Web Site: https://www.jstage.jst.go.jp/article/ieejeiss1987/117/8/117_8_994/_pdf
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• Abstract License Flag: Disallowed