| Autor: |
Barteselli, E, Sant, L, Gaggl, R, Baschirotto, A |
| Přispěvatelé: |
Barteselli, E, Sant, L, Gaggl, R, Baschirotto, A |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Popis: |
Natural bandgaps produce 1.25V reference voltage that does not operate in low-voltage applications. This paper presents a current-mode bandgap reference circuit operating down to 1V supply (nominal = 1.2V) with low temperature coefficient, low power consumption, high Power-Supply-Rejection (PSR) and high performance robustness for industrial production in the consumer microphones field. The voltage reference is generated by the sum of two currents over a matched resistor: one current is proportional to VEB, the other one is proportional to VT. In 65nm node, a 600mV bandgap (BG) reference voltage consumes 5.2uW (4.3uA) at 1.2V supply. The simulated PSR is -91dB, -43dB and -29dB at DC, 1kHz and 10kHz respectively. Montecarlo simulations show a variation of 1% at 3sigma after 4-bits trimming over a temperature range between -40 degC and 100 degC without any high-order curvature compensation, performing 5ppm/degC temperature coefficient. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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