Journal
2019 26TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS (ICECS)
Volume -, Issue -, Pages 170-173Publisher
IEEE
DOI: 10.1109/icecs46596.2019.8965062
Keywords
Ultra-Low Voltage (ULV); Operational Transconductance Amplifier (OTA); Digital-Based Circuit; Internet of Things (IoT)
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This paper presents a power-efficient Ultra Low Voltage (ULV) Digital-Based Operational Transconductance Amplifier (DB-OTA), which uses static logic gates and processes digitally the analog input signal. Post-layout simulations in 180nm CMOS technology show that at 300mV supply voltage the circuit consumes just 2nW while driving a capacitive load of 80pF with Total Harmonic Distortion lower than 5% at 100mV input signal swing. The total silicon area is 1,426 mu m(2). The maximum energy efficiency supply for the DB-OTA and its scalability to 40nm CMOS technology node are also demonstrated.
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