Low-voltage differential amplifier

A low-voltage differential amplifier constructed by bulk-driven PMOS transistors is proposed in this paper. A local positive feedback is utilized that boosts the input transconductance and improve the noise performance. The input common-mode range is also compared to the gate-driven counterpart. A 5...

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Bibliographic Details
Published in2009 16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009) pp. 136 - 139
Main Authors Raikos, G., Vlassis, S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
Subjects
Active filters
Chebyshev approximation
Circuit noise
CMOS process
Cutoff frequency
Differential amplifiers
Feedback
MOSFETs
Transconductance
Voltage
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Summary:A low-voltage differential amplifier constructed by bulk-driven PMOS transistors is proposed in this paper. A local positive feedback is utilized that boosts the input transconductance and improve the noise performance. The input common-mode range is also compared to the gate-driven counterpart. A 5 th order Chebyshev active RC filter with 500 kHz cut-off frequency and 1 dB ripple is built based on the proposed amplifier. All circuits were implemented with 1 V supply voltage using standard 0.35 um CMOS process presenting very promising performances.
ISBN:9781424450909
142445090X
DOI:10.1109/ICECS.2009.5410954