Authors - Misaki Takagi, Takayuki Nakatani, Shogo Katayama, Daisuke Iimori, Gaku Ogihara, Yujie Zhao, Anna Kuwana, Keno Sato, Takashi Ishida, Toshiyuki Okamoto, Tamotsu Ichikawa, Kentaroh Katoh, Kazumi Hatayama, Haruo Kobayashi
Abstract - This paper presents several considerations of LC analog filter design. First, we propose an inductor Equivalent Series Resistance (ESR) compensation technique for LC Analog Band-Pass Filters (BPFs) and Band Elimination Filters (BEF) for low-cost analog/mixed-signal IC test systems. The proposed technique uses an instrumentation amplifier and a few resistors. Also the technique can be extended to the variable inductor implementation for variable center frequency. They were verified with simulation and measurement results. Further, we show in simulation and experiment that mutual inductance between two inductors in the BPF degrade its stop band characteristics, and this problem can be alleviated by the perpendicular placement of the inductors.