CMOS-based near zero-offset multiple inputs max–min circuits and its applications

CMOS-based near zero-offset multiple inputs maximum circuit and minimum circuits are proposed. The analog signal building blocks including shunt-feedback buffer, voltage-subtraction circuits and current mirrors are deployed for obtained the good performances. This achieved circuit is a simply scheme...

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Bibliographic Details
Published in:Analog integrated circuits and signal processing 2009-10, Vol.61 (1), p.93-105
Main Authors: Prommee, Pipat, Angkeaw, Krit, Somdunyakanok, Montri, Dejhan, Kobchai
Format: Article
Language:English
Subjects:
Analog circuits
Circuits
Circuits and Systems
Current mirrors
Delay
Digital to analog converters
Electrical Engineering
Engineering
Frequency response
Power supplies
Signal,Image and Speech Processing
Simulation
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Summary:CMOS-based near zero-offset multiple inputs maximum circuit and minimum circuits are proposed. The analog signal building blocks including shunt-feedback buffer, voltage-subtraction circuits and current mirrors are deployed for obtained the good performances. This achieved circuit is a simply scheme and able to work with low-power supplies. The input range is obtained around ±600 mV within ±1.5 V power supplies. Near zero-offset and low-output impedance are provided by proposed circuit. The delay of output is less than 5 ns for THD less than 1% and frequency response up to 500 MHz. Half-wave, full-wave rectifiers and 4 bits linear combination Digital-to-Analog Converter (DAC) are raised up to confirm the realistic applications. All performances including the DC-characteristic, frequency response, high-frequency wave output are simulated by PSpice.
ISSN:0925-1030
1573-1979
DOI:10.1007/s10470-009-9281-2