| Autor: |
Riccardo Della Sala, Francesco Centurelli, Giuseppe Scotti |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
IEEE Access, Vol 12, Pp 17513-17521 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2024.3359157 |
| Popis: |
In this paper we introduce an improved standard-cell-based voltage amplifier cell with low output resistance. The proposed amplifier cell exhibits a voltage gain whose value can be accurately set by the number of paralleled inverters, and its output static voltage is well controlled through a replica bias approach. A three-stage fully synthesizable OTA architecture exploiting the improved voltage amplifier is also proposed. The OTA has been designed referring to the standard-cell library of a 180nm CMOS technology with a supply voltage of 0.3V and a nominal power consumption of only 6.63 nW, and exhibits a dc-gain of 73.5 dB with a gain-bandwidth-product of 9.63 kHz. A comparison against the state of the art of ultra-low-voltage OTAs has shown that the proposed amplifier exhibits the best value of the small signal figures of merit. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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