An Adaptive Frequency-Fixed Second-Order Generalized Integrator-Quadrature Signal Generator Using Fractional-Order Conformal Mapping Based Approach

2020 ◽  
Vol 35 (6) ◽  
pp. 5548-5552 ◽  
Author(s):  
Mohd. Afroz Akhtar ◽  
Suman Saha
Keyword(s):  
Conformal Mapping ◽  
Fractional Order ◽  
Second Order ◽  
Signal Generator ◽  
Quadrature Signal

An Improved Second-Order Generalized Integrator Based Quadrature Signal Generator

2016 ◽  
Vol 31 (12) ◽  
pp. 8068-8073 ◽  
Author(s):  
Zhen Xin ◽  
Xiongfei Wang ◽  
Zian Qin ◽  
Minghui Lu ◽  
Poh Chiang Loh ◽  
...  
Keyword(s):  
Second Order ◽  
Signal Generator ◽  
Quadrature Signal

scholarly journals A CMOS Quadrature Signal Generator for Impedance Spectroscopy Measurement Systems

2018 ◽  
Vol 6 ◽  
Author(s):  
Alejandro Márquez Marzal ◽  
Nicolás Medrano Marqués ◽  
Belén Calvo López ◽  
Pedro A. Martínez Martínez
Keyword(s):  
Impedance Spectroscopy ◽  
Power Consumption ◽  
Signal Generator ◽  
Active Area ◽  
Fully Integrated ◽  
Resolution Power ◽  
Measurement Systems ◽  
Quadrature Signal ◽  
Spectroscopy Measurement ◽  
On Chip

A CMOS fully integrated quadrature signal generator for on-chip impedance spectroscopy (IS) applications is presented. Frequency can be digitally tuned from 5 to 350 kHz with 12-bit resolution. Power consumption is 0.77 mW and active area is 0.129 mm2. Its suitability for the target application is validated with a Randles test impedance cell modelling a protein.

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