DocumentCode :
3027435
Title :
A hybrid multi-tanh bulk-driven input stage OTA for Low-THD biomedical Gm-C applications
Author :
Ferreira, Luís H C ; Sonkusale, Sameer R.
Author_Institution :
Syst. Eng. & Inf. Technol. Inst., Fed. Univ. of Itajuba, Itajuba, Brazil
fYear :
2012
fDate :
20-23 May 2012
Firstpage :
838
Lastpage :
841
Abstract :
In this paper a hybrid multi-tanh bulk-driven input stage OTA for low total harmonic distortion (THD) biomedical Gm-C applications in weak inversion is presented. The proposed OTA was successfully simulated in an 130-nm IBM CMOS process. The simulations show an open loop gain of 46.4 dB and a unit gain frequency of 125 Hz with only 500 mV of power supply voltage and just 25 nW of power consumption. The transconductance is 24 nS with 300 mVpp of linear input range (HD3 ≤ - 60 dB), which is suitable for low-frequency and low-THD biomedical Gm-C applications.
Keywords :
CMOS integrated circuits; biomedical electronics; harmonic distortion; low-power electronics; operational amplifiers; IBM CMOS process; biomedical Gm-C applications; frequency 125 Hz; gain 46.4 dB; hybrid multitanh bulk-driven input stage OTA; low total harmonic distortion; power 25 nW; size 130 nm; transconductance; voltage 500 mV; weak inversion; CMOS process; MOSFETs; Noise; Power supplies; Threshold voltage; Transconductance; Hybrid multi-tanh bulk-driven input stage OTA; low-power and low-THD Gm-C applications; low-voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems (ISCAS), 2012 IEEE International Symposium on
Conference_Location :
Seoul
ISSN :
0271-4302
Print_ISBN :
978-1-4673-0218-0
Type :
conf
DOI :
10.1109/ISCAS.2012.6272171
Filename :
6272171
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3027435
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