Voltage Differencing Current Conveyor Differential Input Transconductance Amplifier: Novel Active Element and Its Resistorless Filtering Application This paper introduces novel modification of active element based on current conveyor transconductance amplifier core abbreviated as current controlled voltage differencing current conveyor differential input transconductance amplifier (CCVDCCDITA). The active element is implemented by recently developed and manufactured IC modular device based on I3T25 0.35 xcexbcm ON Semiconductor CMOS process. Active element uses three internal active cells of this IC device for construction of the CCVDCCDITA. An application example of proposed element in simple special resistorless electronically adjustable biquadratic filter is shown. Brief comparison with stateoftheart solutions indicates beneficial features of proposed solution. Simulation results in Cadence IC tool accompany precise laboratory experimental measurements with real prototype.

FullySynthesizable CurrentInput ADCs for UltraLow Area and Minimal Design Effort A fully synthesizable ADC architecture is proposed for lowend current sensing applications. Being based on standard cells and designed with a fullyautomated flow, the proposed ADC allows very low area, digitallike scaling across CMOS technology generations, technology and design portability, minimal design effort, and immersedin logic design (i.e., low integration effort), compared to traditional analogintensive designs. In addition, it allows direct current readout without requiring a transresistance stage. Testchip measurements show a 5nA to  1boldsymbolmu mathbfA  input range, 6.7bit ENOB and 2.2kSs sample rate, at 940nW power and  4,580boldsymbolmu mathbfm2  area. To the best of the authorsu0027 knowledge, this testchip is the first demonstration of a fullysynthesizable inputcurrent ADC. Along with the analysis of the specific limitations of the presented demonstration, this work aims to pave the way for a new class of currentinput ADCs that can be designed and integrated with logic within hours, and occupy a silicon area in the order of 10kgates.