Title :
Design of a 50nW, 0.5VDD sub-threshold OTA amplifier with indirect compensation technique and class AB output stage
Author :
Ganta, Ranga Babu ; Mengye Cai ; Fricke, Kyle ; Sobot, Robert
Author_Institution :
Indian Inst. of Technol. Kharagpur, Kharagpur, India
Abstract :
We present analysis and design of a 0.5VDD two stage OTA amplifier with current-buffer compensation and class AB output stage in 90nm CMOS technology. All transistors in the amplifier operate in the sub-threshold region while achieving 86dB DC gain and unity gain frequency 40.5kHz with a load capacitor of 30pF. The total power dissipation is 50nW with bias current of 10nA.
Keywords :
CMOS analogue integrated circuits; buffer circuits; operational amplifiers; CMOS technology; capacitance 30 pF; class AB output stage; current 10 nA; current-buffer compensation; frequency 40.5 kHz; gain 86 dB; indirect compensation technique; power 50 nW; size 90 nm; subthreshold OTA amplifier design; voltage 0.5 V; CMOS integrated circuits; MOSFET; Power demand; Resistance; Resistors;
Conference_Titel :
Electrical and Computer Engineering (CCECE), 2015 IEEE 28th Canadian Conference on
Conference_Location :
Halifax, NS
Print_ISBN :
978-1-4799-5827-6
DOI :
10.1109/CCECE.2015.7129316
