Stanislaw Szczepanski

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—A programmable high-frequency operational transconductance amplifier (OTA) is proposed and analyzed. A general configurable analog block (CAB) is presented, which consists of the proposed programmable OTA, programmable capacitor and MOSFET switches. Using the CABs, the universal tunable and field programmable analog array (FPAA) can be constructed, which(More)
—An analytical method based on the standard square-law metal–oxide–semiconductor (MOS) modeling for the design of highly linear, fully differential complementary metal–oxide–semiconductor (CMOS) operational transcon-ductance amplifier (OTA) is presented. The proposed circuit implementation combines a cross-coupled quad cell and a source-coupled differential(More)
Highly linear operational transconductance amplifier (OTA) is developed, using CMOS differential pair transconductors in an active-error feedforward linearization configuration. As a result, improved linearity of the differential-input two-output OTA is obtained. SPICE simulations show that for the circuit working with a ±1.25V power supply, total harmonic(More)
A high-frequency fully differential CMOS operational transconductance amplifier (OTA) is presented for continuous-time filter applications in the megahertz range. The proposed design technique combines a linear cross-coupled quad input stage with an enhanced folded-cascode circuit to increase the output resistance of the amplifier. SPICE simulations show(More)