Noninverting integrators with improved high-frequency response

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Noninverting integrators with improved high-frequency response

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© The Institution of Electrical Engineers
Published

Two methods are presented for improving the poor high-frequency response of noninverting integrators due to the limited gain-bandwidth product of operational amplifiers (o.a.s). Integrators involving two o.a.s can be upgraded by choosing the inverter's resistance ratio in correspondence with the golden section. Furthermore, a known method for compensating Miller integrators is applied to the DeBoo integrator.

Inspec keywords: integrating circuits; active filters; frequency response

Other keywords: compensating Miller integrators; high frequency response; DeBoo integrator; noninverting integrators

Subjects: General circuit analysis and synthesis methods; Active filters and other active networks

References

    1. 1)
      • D. ÅKerberg , K. Mossberg . Low-sensitivity easily trimmed standard building block for active RC filters. Electron. Lett. , 528 - 529
    2. 2)
      • G.J. Deboo . A novel integrator results by grounding its capacitor. Electron. Des.
    3. 3)
      • P.O. Brackett , A.S. Sedra . Active compensation for high-frequency effects in op-amp circuits with applications to active RC filters. IEEE Trans. , 68 - 72
    4. 4)
      • D. Åkerberg , K. Mossberg . A versatile active RC building block with inherent compensation for the finite bandwidth of the amplifier. IEEE Trans. , 75 - 78
    5. 5)
      • P.E. Allen , W.J. Parrish . High frequency response of inverting integrators. IEEE J. Solid-State Circuits , 545 - 547
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