IP명 | 0.3V RC-to-Digital Converter Using a Negative Charge-Pump Switch | ||
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Category | Analog | Application | analog circuit |
실설계면적 | 4㎛ X 4㎛ | 공급 전압 | 1.2V |
IP유형 | Hard IP | 동작속도 | 1GHz |
검증단계 | Silicon | 참여공정 | SS65-2001 |
IP개요 | This brief proposes a 0.3-V resistance and capacitance-to-digital converter (RCDC) using a negative chargepump switch. The proposed RCDC operates at a subthreshold supply voltage by using the negative charge-pump switch, which turns on a precharge pMOS switch with a negative supply voltage. It converts resistance or capacitance to digital signals. The proposed RCDC was fabricated using a 65-nm CMOS process. It achieves ENOBs of 10.6 bits for the resistance of 1–100k and the capacitance of 10 pF–10 nF, which correspond to figure-of merits (FoMs) of 3.03 pJ/step and 2.54 pJ/step, respectively, at the supply voltage of 0.3 V. |
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