Title :
Low power fully differential, feed-forward compensated bulk driven OTA
Author :
Rekha, S. ; Laxminidhi, T.
Author_Institution :
Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Karnataka, Surathkal, India
Abstract :
A low voltage, low power bulk driven Operational Transconductance Amplifier (OTA) is designed in 180 nm CMOS Technology. The OTA employs feed-forward compensation achieving open loop DC gain of 44.05 dB, 3 dB bandwidth of 408 kHz, Unity Gain Bandwidth (UGB) of 9.07 MHz. OTA is stable with phase margin of 45° and a gain margin of 66 dB for a pure capacitive load of 1 pF. OTA operates on 0.5 V supply consuming a power of 30 μW.
Keywords :
CMOS analogue integrated circuits; HF amplifiers; compensation; feedforward amplifiers; low-power electronics; operational amplifiers; CMOS technology; bandwidth 408 kHz; bandwidth 9.07 kHz; bulk driven OTA; capacitance 1 pF; feedforward compensation; fully differential OTA; gain 44.05 dB; low power OTA; low voltage OTA; operational transconductance amplifier; power 30 muW; size 180 nm; voltage 0.5 V; CMOS integrated circuits; CMOS technology; Europe; Robustness; CMOS; bulk driven; feed-forward frequency compensation;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2011 8th International Conference on
Conference_Location :
Khon Kaen
Print_ISBN :
978-1-4577-0425-3
DOI :
10.1109/ECTICON.2011.5947778
