Аннотация:A universal active current filter with three inputs and one output, which has a simpler structure than previous universal active filters is presented. The circuit offers wide bandwidth, high output impedance, and independent control of ω0, Q and current gain with separate grounded resistors. It uses grounded capacitors and is therefore ideal for integration. It contains two grounded capacitors, six grounded resistors, and five CCHs, and can be used for a switched-capacitor (SC) filter simply by replacing each of the resistors with grounded switched capacitors.
