A high-performance CMOS first-generation current conveyor

Filho, Carlos Alberto dos Reis; Santos, Mauro

doi:10.1109/iccdcs.1995.499118

Cited by 1 publication

(1 citation statement)

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“…It can provide a higher gain over a larger signal bandwidth under small or large signal conditioning than corresponding op-amp circuits [2]. Although the CC concept has been around for a long time with the first generation CC (CCI) proposed in 1968 and the more versatile and adaptable second generation CCII in 1970 [3,4]. In CCI both the currents and the voltages in ports X and Y are forced to be equal and a replica of the currents is mirrored (or conveyed) to the output port Z.…”

Section: Introductionmentioning

confidence: 99%

Design of Analog Field Programmable CMOS Current Conveyor

Kapur¹,

Mittal²,

Markan³

et al. 2012

CSSP

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The paper propose a modified high frequency current controlled current conveyor CMOS circuit CCCII where current gain, current controlling intrinsic impedance and circuit offsets are programmable independently to desired values within a specific field range after fabrication with the help of field programmable floating gate transistors FGMOS. The programmable charge at floating-gate of FGMOS using external voltages results in its threshold voltage variation, which in turn program the design (CCCII) specifications. The circuit occupies low power, about 1.509mW total power dissipation and shows higher temperature stability (0.0287uA/°C variation in output current with temperature change). With specific sizing and biasing condition, the current gain can be programmed from 0.2 to 2.1, intrinsic impedance from 15K to 51K, while offset current can be compensated, independently using each FGMOSFETs, respectively, with 13-bit precision. However the final programmable CCCII circuit with FGMOSFETs occupies 65µm × 54µm chip area. The circuit finds application in systems where field-programmability of the design using smaller sized hardware is required like universal filter, current control high frequency oscillator, etc as compared to the circuits using current control conveyor based FPAAs.

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Section: Introductionmentioning

confidence: 99%