 This paper presents four new universal bi-quad filters, two-voltage mode MISO and two current mode CMO. These filters use a voltage difference in current conveyor, VDC, as an active element in two capacitors and two resistors as passive elements. They can generate high-pass, low-pass, band-pass, band-stop, and all-pass responses from the same circuit topology. Additionally, the pole frequency and quality factor are independently tunable. The designs have low active and passive sensitivity and can be easily implemented in TSMC 0.18 micrometers technology. The functionality of the proposed filters was verified through SPICE simulations and experiments using commercially available OPA860 ICs. The results were found to match the theoretical predictions. This article was authored by Siviget Roy, Tapas Kumar Paul, PsycopMighty, and others.