Current-mode Configurable Analog Block

The paper presents a novel ELIN analog configurable block (CAB). Using this CAB one can implement first and second order transfer functions such as lossy and lossless integrator, low-pass, high-pass, band-pass and band-stop biquads. For implementing the building blocks, we used log-domain cells. Due to their simple structures and current-mode operation this circuits are suitable for low-voltage, low-power applications such as field programmable analog arrays. The circuits were implemented using a generic 180 nm BiCMOS process. SPICE analyses were performed to validate the design.