dB-linear V-I converter with tunable input and output range

This paper proposed an ultra low-voltage low-power all CMOS exponential V-I converter with tunable input and output ranges. The Taylor series expansion is used for realizing the exponential characteristic. The simulations, based on a 0.25 mum CMOS process, show a 20 dB linear output current range an...

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Bibliographic Details
Main Authors: Quoc-Hoang Duong, Trung-Kien Nguyen, Sang-Gug Lee
Format: Conference Proceeding
Language:English
Subjects:
Character generation
Circuit simulation
CMOS process
Energy consumption
Equations
Linearity
Taylor series
Tunable circuits and devices
Very large scale integration
Voltage
Online Access:Request full text
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Summary:This paper proposed an ultra low-voltage low-power all CMOS exponential V-I converter with tunable input and output ranges. The Taylor series expansion is used for realizing the exponential characteristic. The simulations, based on a 0.25 mum CMOS process, show a 20 dB linear output current range and a 15 dB-linear range with the linearity error less than plusmn 0.5 dB at 1.25V supply voltage. The average power consumption is less than 80 muW
ISSN:1548-3746
1558-3899
DOI:10.1109/MWSCAS.2003.1562253