SINGLE CFA-BASED NICs WITH IMPEDANCE SCALING PROPERTIES

2005 ◽  
Vol 14 (02) ◽  
pp. 195-203 ◽  
Author(s):  
ALI ÜMIT KESKIN
Keyword(s):  
Integrated Circuits ◽  
Mixed Mode ◽  
Building Blocks ◽  
Current Feedback ◽  
Scaling Properties ◽  
Feedback Amplifier ◽  
Current Feedback Amplifier ◽  
Design And Manufacturing ◽  
Impedance Scaling ◽  
Impedance Converter

Negative impedance converter circuits (NICs) are important building blocks in design and manufacturing of analog and mixed mode integrated circuits. In this paper, a catalogue of single-current feedback amplifier-based negative impedance converter circuits having impedance scaling properties is proposed. Various examples are presented to illustrate the versatility of the proposed NIC circuits.

Novel Lossless Grounded and Floating Inductance Simulators Employing a Grounded Capacitor Based on CC-CFA

2019 ◽  
Vol 28 (06) ◽  
pp. 1950093 ◽  
Author(s):  
Amrita Singh ◽  
Manoj Kumar Jain ◽  
Subodh Wairya
Keyword(s):  
Theoretical Analysis ◽  
Integrated Circuits ◽  
Analog Circuit ◽  
Current Feedback ◽  
Feedback Amplifier ◽  
Current Feedback Amplifier ◽  
Floating Inductance ◽  
Floating Inductor Simulator ◽  
Simulation Results ◽  
Alternative Choice

Simulation of inductors has been a very popular area of analog circuit research and the alternative choice for realizing inductor-based circuits in integrated circuits. In this paper, lossless, grounded and floating inductor topologies using current-controlled-current-feedback amplifier (CC-CFA) with single grounded capacitor are presented. The proposed topologies can be tuned electronically by changing the biasing current of the CC-CFA. Two topologies for grounded inductor simulator employ two CC-CFA and one grounded capacitor. One topology for floating inductor simulator employs three CC-CFA and one grounded capacitor. The performance of the grounded and floating inductor simulators are demonstrated on resonant circuits. The theoretical analysis is verified by PSPICE simulation results.

scholarly journals Design Impedance Mismatch Physical Unclonable Functions for IoT Security

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaomin Zheng ◽  
Yuejun Zhang ◽  
Jiaweng Zhang ◽  
Wenqi Hu
Keyword(s):  
Transmission Line ◽  
Printed Circuit Board ◽  
Signal Transmission ◽  
Characteristic Impedance ◽  
Circuit Board ◽  
Physical Factors ◽  
Current Feedback ◽  
Impedance Mismatch ◽  
Feedback Amplifier ◽  
Current Feedback Amplifier

We propose a new design, Physical Unclonable Function (PUF) scheme, for the Internet of Things (IoT), which has been suffering from multiple-level security threats. As more and more objects interconnect on IoT networks, the identity of each thing is very important. To authenticate each object, we design an impedance mismatch PUF, which exploits random physical factors of the transmission line to generate a security unique private key. The characteristic impedance of the transmission line and signal transmission theory of the printed circuit board (PCB) are also analyzed in detail. To improve the reliability, current feedback amplifier (CFA) method is applied on the PUF. Finally, the proposed scheme is implemented and tested. The measure results show that impedance mismatch PUF provides better unpredictability and randomness.

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