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Circuit simulation study demonstrates reduced complexity in current-mode biquad filters, suggesting improved integration efficiency for analog signal processing systems.
In this Letter, we propose a novel current‐mirror‐based lossless integration stage. The proposed stage is derived from the lossy integration counterpart by simply incorporating an additional DC current source. The unique offered contribution is the reduction of the circuit complexity in the resulting current‐mode systems, where the introduced integrator is utilized. This is verified through the performed comparison with the corresponding stage, which is already introduced in the literature. A multiple‐output biquad filter is designed using the proposed lossless integrator, and its performance is evaluated through the utilization of the Cadence IC design suite.
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Nako et al. (2025) studied this question.
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