A 0.3-V 98-dB Rail-to-Rail OTA in $0.18~\mu$ m CMOS
| Autor: | Tomasz Kulej, Fabian Khateb |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
General Computer Science
02 engineering and technology Capacitance law.invention law 0202 electrical engineering electronic engineering information engineering General Materials Science low voltage operational amplifier Physics low power business.industry Amplifier 020208 electrical & electronic engineering General Engineering Electrical engineering 020206 networking & telecommunications CMOS Operational transconductance amplifier Operational amplifier Bulk-driven lcsh:Electrical engineering. Electronics. Nuclear engineering operational transconductance amplifier business Electrical efficiency Low voltage lcsh:TK1-9971 Voltage |
| Zdroj: | IEEE Access, Vol 8, Pp 27459-27467 (2020) IEEE Access. 2020, vol. 8, issue 1, IF: 3.745, p. 27459-27467. |
| ISSN: | 2169-3536 |
| Popis: | A new solution for an ultra-low-voltage, ultra-low-power operational transconductance amplifier (OTA) is presented in the paper. The design exploits a three-stage structure with a Reversed Miller Compensation Scheme, where the input stage is based on a non-tailed bulk-driven differential pair. Optimization of the structure for very low supply voltage is discussed. The resulting amplifier outperforms other ultra-low-voltage OTAs in terms of a DC voltage gain and power efficiency, expressed by standard figures of merit. Experimental verification using a $0.18~\mu \text{m}$ CMOS technology, with supply voltage of 0.3-V, showed a dissipation power of 13 nW, a DC voltage gain of 98 dB, a gain-bandwidth product of 3.1 kHz and an average slew-rate of 9.1 V/ms at 30 pF load capacitance. The experimental results agree well with simulations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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