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N. Tadic, A. Dervic, M. Erceg, B. Goll, H. Zimmermann:
"A 54.2-dB Current Gain Dynamic Range, 1.78-GHz Gain-Bandwidth Product CMOS VCCA²";
IEEE Transactions on Circuits and Systems II: Express Briefs, Vol. 66 (2019), No. 1; S. 46 - 50.

A voltage-controlled current amplifier/attenuator in
a standard 0.35-μm CMOS technology is presented. It is based
on the resistive mirror method, using non-saturated MOSFETs.
An open-loop design with no compensation capacitors provides
a high stability and a small occupied chip area of 0.0126 mm².
A current gain dynamic range of 513 (54.2 dB), a gain-bandwidth
product of 1.78 GHz at the largest current gain of 35.9 dB, and
a maximum power consumption of 250 μW with a single supply
voltage of 1.3 V are achieved. In addition, an AC current source
has been designed, integrated on the same chip, and used as the
input of the proposed voltage-controlled amplifier/attenuator.

CMOS analog integrated circuits, current amplifier, current attenuator, current conveyor, replica circuit, resistive mirror

http://dx.doi.org/10.1109/TCSII.2018.2837152