Automated ECG: Amplification and Filter Simulations Using LTspice : 5 Steps - Instructables
operational amplifier - Setting the cutoff frequency of an active bandpass filter (op amp) and finding the phase in LTSpice - Electrical Engineering Stack Exchange
Simulating a 40m bandpass filter in LTSpice | brainwagon
Applying the Laplace Transform in LTspice to Model Transfer Functions | Electronic Design
LTSpice – First Steps, Already Helpful – kk9jef
MFB 2nd order low-pass filter - Q&A - Power Management - EngineerZone