A 0.8 V 191.9 nW DTMOS Current Mirror OTA in 0.18 μm CMOS Process
محورهای موضوعی : Majlesi Journal of Telecommunication DevicesIman Khosrojerdi 1 , Amin Rezvani 2 , Reza Pourandoost 3
1 - Imam Reza International University
2 - Imam Reza International University
3 - sadjad institute of higher education
کلید واژه: en,
چکیده مقاله :
In this paper a low-noise low-power CMOS operational transconductance amplifier (OTA) using dynamic threshold voltage MOSFET (DTMOS) technique is presented. The OTA is designed and simulated using 0.18 µm CMOS technology. The performed simulation results show an input-referred noise of 520.2 nV/√Hz at 1 mHz so reduces to 115.8 pV/√Hz at 1 Hz, and a power consumption of 191.9 nW under 5 pF loads. The dc open loop gain is 53.13 dB, a phase margin of 50o and a unity gain-bandwidth (UGB) of 572.9 kHz while operating at 0.8 V supply voltage. The proposed OTA is suitable for low noise and low-power application such as medical application
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