Novel active compensated weighted summer

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Novel active compensated weighted summer

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© The Institution of Electrical Engineers
Published

A new active compensated generalised weighted summer is given. The compensation is achieved by using two extra operational amplifiers and six resistors. The proposed summer has negligible phase and magnitude errors over an extended frequency range. The design equations are given and the tuning procedure is discussed.

Inspec keywords: compensation; summing circuits; active networks

Other keywords: compensation; operational amplifiers; tuning procedure; active compensated generalised weighted summer; phase errors; magnitude errors

Subjects: Active filters and other active networks

References

    1. 1)
      • Ismail, M., Soliman, A.M.: `A novel active compensated method of opamp VCVS and weighted summer building blocks', Proceedings of IEEE Int. Symposium on circuits and systems, July 1979, , p. 922–925.
    2. 2)
      • S Natarajan , B.B. Bhattacharyya . Design of actively compensated finite gain amplifiers for high frequency applications. IEEE Trans. , 1133 - 1139
    3. 3)
      • R.L. Geiger , A Budak . Design of active filters independent of first and second order operational amplifier time constant effects. IEEE Trans. , 749 - 757
    4. 4)
      • A.M. Soliman . Active compensated summers without matched operational amplifiers. IEEE Circuits & Syst. Mag. , 26 - 27
    5. 5)
      • A. Rodriguez-Vazquez , J.L. Huertas . Novel active compensated weighted summer. Electron. Lett. , 394 - 395
    6. 6)
      • A.M. Soliman . A novel active phase compensated inverting amplifier. Frequenz , 238 - 240
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